{"title":"Wiring \u0026 Electrical","description":"\u003cp\u003eThe part of a layout nobody sees and everybody underestimates. Bad wiring is the single most common reason a layout runs badly — dead frogs, stalling locomotives, flickering lights and short circuits that trip a whole district.\u003c\/p\u003e\u003cp\u003eWe stock what it takes to do it properly: layout hookup wire in every gauge and colour from \u003ca href=\"\/collections\/wire-works\"\u003eWire Works\u003c\/a\u003e, \u003ca href=\"\/collections\/peco\"\u003ePeco\u003c\/a\u003e power feed joiners and point motor accessories, \u003ca href=\"\/collections\/atlas\"\u003eAtlas\u003c\/a\u003e connectors, terminal joiners and control switches, \u003ca href=\"\/collections\/digitrax\"\u003eDigitrax\u003c\/a\u003e occupancy detectors and power managers, plus heat shrink tubing, bus wire, circuit breakers, auto-reversers and block detection circuits from \u003ca href=\"\/collections\/circuitron\"\u003eCircuitron\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eA rule of thumb worth following: run a heavy bus wire under the layout and drop feeders to every section of rail rather than relying on joiners to carry current. See \u003ca href=\"\/collections\/decoders\"\u003eDCC Decoders\u003c\/a\u003e and \u003ca href=\"\/collections\/controllers\"\u003eDCC Systems \u0026amp; Controllers\u003c\/a\u003e for the rest of the control system, and \u003ca href=\"\/collections\/sound-and-lighting\"\u003eSound \u0026amp; Lighting\u003c\/a\u003e for signals and LED lighting.\u003c\/p\u003e\u003cp\u003eShips from Oakville, Ontario. Free shipping on orders over $250. Contact us for special orders.\u003c\/p\u003e","products":[{"product_id":"atlas-210-twin-control-switches-new","title":"Atlas 210 Twin Control Switches","description":"\u003cp\u003eThe Atlas #210 Twin is a classic Atlas wiring control unit — a pair of internally cross-wired DPDT (double-pole, double-throw) switches that gives you independent polarity control at two pairs of output terminals. Designed for cab control of reverse loops, wyes, turntables, and short reversing sections on DC-powered model railroads.\u003c\/p\u003e\u003cp\u003eThe Twin is part of Atlas's long-running Selector \/ Controller \/ Twin family of analog wiring blocks. Multiple Twins can be ganged together with the included double-edged jumper connectors — no extra wiring required between units. The screw-terminal housing accepts #3-48 screws and is fully compatible with Atlas spade-tongue solderless connectors for fast hookup.\u003c\/p\u003e\u003cp\u003eWhile the Twin is fundamentally a DC analog accessory, modellers running DCC frequently use it as a manual polarity switch on small reversing sections where an auto-reverser would be overkill.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Cab Control \/ Reverse-Loop Switch (Twin DPDT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Reverse loops · wyes · turntable polarity · double-track polarity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Screw + spade (Atlas #201 connectors recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCouples with:\u003c\/strong\u003e Atlas #215 Selector, #220 Controller via included jumpers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e 210\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096862482614,"sku":"150-210","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_09f4a68a-32bd-4b44-b912-1fca26731f67.png?v=1777495724"},{"product_id":"atlas-215-selector-control-switches-new","title":"Atlas 215 Selector Control Switches","description":"\u003cp\u003eThe Atlas #215 Selector is the classic Atlas 2-cab \/ 4-block wiring control unit — four single-pole, double-throw (SPDT) switches that let you independently route either of two cabs to any of four track blocks on a DC-powered model railroad.\u003c\/p\u003e\u003cp\u003eSelectors can be ganged together in any number with the included double-edged jumper connectors, expanding cab control to as many blocks as your layout requires; they can also be wired as area selectors for four-cab operation. Pair with the #220 Controller for reverse-loop, wye, and turntable polarity reversal.\u003c\/p\u003e\u003cp\u003eThe Selector remains one of the simplest, most reliable ways to wire up multi-cab DC operation — and many DCC modellers still use it for shop-track power isolation and progressive train staging.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Cab \/ Block Selector (4× SPDT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabs \/ Blocks:\u003c\/strong\u003e 2-cab × 4-block per unit; ganged for more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e Screw + spade (Atlas #201 connectors recommended)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCouples with:\u003c\/strong\u003e Atlas #220 Controller, #210 Twin via included jumpers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Number:\u003c\/strong\u003e 215\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096862548150,"sku":"150-215","price":17.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_ea8c57b2-611c-433b-af47-adc70d0055ab.jpg?v=1777495729"},{"product_id":"atlas-312-5-conductor-ribbon-wire-50-long","title":"Atlas 312 5-Conductor Ribbon Wire 50' Long","description":"\u003cp\u003eAtlas \u003cstrong\u003e#312\u003c\/strong\u003e is a 50-foot (15.2 m) \u003cstrong\u003e5-conductor ribbon-wire bundle\u003c\/strong\u003e — five individually insulated conductors fused side-by-side into a flat ribbon, the same wire Atlas supplies with its remote-control turnouts and Snap-Relay accessories. Buying a fresh roll lets you wire long runs without splicing and lets you keep your circuits color-coded as you go.\u003c\/p\u003e\u003cp\u003eUseful in any scale (HO, N, Z, S, O) and on any layout — DC, DCC, or AC accessory. Despite Shopify's category tag, this is general-purpose layout wire, not a DCC-specific product.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e50 ft total length — fan out one ribbon to several accessories without joining short pieces.\u003c\/li\u003e\n\u003cli\u003eRun alongside other Atlas turnout machines (#65 under-table, #80 above-table, Snap-Relay #200) where the factory-supplied harness is too short.\u003c\/li\u003e\n\u003cli\u003eStrip individual conductors with a 22 AWG \/ 24 AWG wire stripper; solder or insertion-crimp into your control panel terminals.\u003c\/li\u003e\n\u003cli\u003eColor-keyed conductors make it easy to track \"left coil \/ right coil \/ common \/ signal \/ accessory\" runs on a control panel.\u003c\/li\u003e\n\u003cli\u003eWorks at any voltage your layout needs — DC track power, DCC, or 12-16V AC accessory.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 5-conductor ribbon layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft (15.2 m)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Any scale \/ any layout (DC, DCC, AC accessory)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973500598,"sku":"150-312","price":50.1,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_1f43b355-57b0-4273-8a42-4d4dc2a83d29.jpg?v=1779571085"},{"product_id":"atlas-315-20-gauge-layout-wire-50-long-black","title":"Atlas 315 20 Gauge Layout Wire 50' Long - Black","description":"\u003cp\u003eAtlas \u003cstrong\u003e#315\u003c\/strong\u003e is a 50-foot reel of \u003cstrong\u003e20 AWG stranded layout wire in black\u003c\/strong\u003e — the workhorse single-conductor wire for bus runs, track feeds, and accessory wiring on model railroads. 20 AWG handles the current of any common-scale DC pack or DCC booster (5-10 A NMRA) with plenty of margin on a typical home layout.\u003c\/p\u003e\u003cp\u003eDespite Shopify's category tag, this is general-purpose model railroad wire, not a DCC-specific product. Works on any scale and any layout — DC, DCC, or AC accessory.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlack is the conventional color for one rail of the track bus (sometimes called \"outside rail\" or \"common\") — pair with red (#316) for the other rail.\u003c\/li\u003e\n\u003cli\u003eStrip with a 20 AWG \/ 18 AWG wire stripper; suitcase-connect, screw-terminal, or solder to track feeders.\u003c\/li\u003e\n\u003cli\u003e50 ft per reel — enough for a small-to-medium home layout's main bus runs.\u003c\/li\u003e\n\u003cli\u003eStranded conductor gives flexibility for routing through benchwork — fish through holes without kinking.\u003c\/li\u003e\n\u003cli\u003eColor-code consistently across the layout for sane troubleshooting: black for one polarity, red for the other.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 20 AWG stranded single-conductor layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Track bus, feeders, accessories (any scale, DC\/DCC\/AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 315\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973566134,"sku":"150-315","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_eb97ada6-7bcf-42f0-afba-e07287b24687.jpg?v=1779570725"},{"product_id":"atlas-316-20-gauge-layout-wire-50-long-red","title":"Atlas 316 20 Gauge Layout Wire 50' Long - Red","description":"\u003cp\u003eAtlas \u003cstrong\u003e#316\u003c\/strong\u003e is a 50-foot reel of \u003cstrong\u003e20 AWG stranded layout wire in red\u003c\/strong\u003e — the standard \"hot\" or \"inside rail\" color for the second leg of a model-railroad track bus. Use with black (#315) for a consistent two-color bus on any scale.\u003c\/p\u003e\u003cp\u003eGeneral-purpose layout wire — works on any scale, any layout type (DC, DCC, AC accessory). Not DCC-specific despite the store category tag.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRed is the conventional color for the second leg of the track bus, paired with black (#315).\u003c\/li\u003e\n\u003cli\u003e20 AWG handles common DCC booster currents (5-10 A) on home layouts with plenty of headroom.\u003c\/li\u003e\n\u003cli\u003eStrip, suitcase-connect, or solder to track feeders — stranded conductor flexes easily.\u003c\/li\u003e\n\u003cli\u003e50 ft reel — pair with #315 for a balanced two-color bus on a medium layout.\u003c\/li\u003e\n\u003cli\u003eAlso useful for AC accessory wiring runs that need to be visually distinct from track bus.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 20 AWG stranded single-conductor layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Red\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Track bus, feeders, accessories (any scale, DC\/DCC\/AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 316\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973631670,"sku":"150-316","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_08860e5b-6807-423a-b508-887f0b06ebec.jpg?v=1779570905"},{"product_id":"atlas-317-20-gauge-layout-wire-50-long-green","title":"Atlas 317 20 Gauge Layout Wire 50' Long - Green","description":"\u003cp\u003eAtlas \u003cstrong\u003e#317\u003c\/strong\u003e is a 50-foot reel of \u003cstrong\u003e20 AWG stranded layout wire in green\u003c\/strong\u003e — the conventional color for accessory grounds, signal commons, or any \"third color\" that needs to be visually distinct from track-bus black\/red. General-purpose model-railroad wire for any scale and any layout type.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGreen is widely used for accessory commons, signal returns, switch-machine commons, or layout-ground.\u003c\/li\u003e\n\u003cli\u003e20 AWG handles DC pack, DCC booster, or 12-16V AC accessory current without warming up.\u003c\/li\u003e\n\u003cli\u003eStrip and solder, screw-terminal, or suitcase-connect.\u003c\/li\u003e\n\u003cli\u003e50 ft reel — enough for accessory wiring across a medium home layout.\u003c\/li\u003e\n\u003cli\u003eColor-code consistently across the layout: black (#315) for one rail, red (#316) for the other, green (#317) for accessory return — pure troubleshooting sanity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 20 AWG stranded single-conductor layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Accessory commons, signal returns, layout ground (any scale, DC\/DCC\/AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 317\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973762742,"sku":"150-317","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_95626b8f-bead-4442-b0e8-6610a74fddc6.jpg?v=1779571086"},{"product_id":"atlas-318-20-gauge-layout-wire-50-long-yellow","title":"Atlas 318 20 Gauge Layout Wire 50' Long - Yellow","description":"\u003cp\u003eAtlas \u003cstrong\u003e#318\u003c\/strong\u003e is a 50-foot reel of \u003cstrong\u003e20 AWG stranded layout wire in yellow\u003c\/strong\u003e — high-visibility color useful for signal-circuit hot legs, individual switch-machine coil leads, or any wiring run you want to spot instantly during troubleshooting. General-purpose model-railroad wire for any scale.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eYellow is widely used for one of the two switch-machine coil leads (\"left coil\" or \"normal\" position), with another color for the opposing coil.\u003c\/li\u003e\n\u003cli\u003eAlso useful for signal-aspect circuits where each color denotes a specific aspect or block.\u003c\/li\u003e\n\u003cli\u003e20 AWG handles DC, DCC, or 12-16V AC accessory current with margin.\u003c\/li\u003e\n\u003cli\u003e50 ft reel — enough for several full switch-machine harness runs on a medium layout.\u003c\/li\u003e\n\u003cli\u003eColor-code consistently with the rest of the Atlas wire family: black\/red track bus, green accessory return, yellow\/blue switch coils.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 20 AWG stranded single-conductor layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Switch-machine coils, signal circuits, high-visibility runs (any scale, DC\/DCC\/AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 318\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973861046,"sku":"150-318","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_12cda29d-472a-4001-b7cb-49a9471637cc.jpg?v=1779571026"},{"product_id":"atlas-319-20-gauge-layout-wire-50-long-blue","title":"Atlas 319 20 Gauge Layout Wire 50' Long - Blue","description":"\u003cp\u003eAtlas \u003cstrong\u003e#319\u003c\/strong\u003e is a 50-foot reel of \u003cstrong\u003e20 AWG stranded layout wire in blue\u003c\/strong\u003e — typically the second switch-machine coil color (paired with yellow #318) or used as a distinct fourth color for advanced wiring like block detection, signal feeds, or detection-bus runs. General-purpose model-railroad wire for any scale.\u003c\/p\u003e\u003ch3\u003eHow to use\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlue is the conventional partner of yellow (#318) for the opposite switch-machine coil — \"right coil\" \/ \"reverse\" position.\u003c\/li\u003e\n\u003cli\u003eAlso widely used for block-detection runs, RailCom feedback, or signal aspect feeds.\u003c\/li\u003e\n\u003cli\u003e20 AWG handles DC, DCC, or 12-16V AC accessory current with margin.\u003c\/li\u003e\n\u003cli\u003e50 ft reel — enough for a complete switch-machine harness or block-detection bus on a medium layout.\u003c\/li\u003e\n\u003cli\u003eBuild a consistent color scheme across the layout: black\/red track bus (#315\/#316), green accessory return (#317), yellow\/blue switch coils (#318\/#319).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e 20 AWG stranded single-conductor layout wire\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 50 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Switch-machine coils, block detection, signal feeds (any scale, DC\/DCC\/AC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Atlas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU \/ Item Number:\u003c\/strong\u003e 319\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Atlas","offers":[{"title":"Default Title","offer_id":45096973926582,"sku":"150-319","price":16.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_607e5652-d646-476c-80bd-f6ca58767a27.png?v=1777509019"},{"product_id":"circuitron-2002-tp-2-track-power-adapter-new","title":"Circuitron 2002 TP-2 Track Power Adapter (Powers Circuits from Track Power)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 2002 TP-2 Track Power Adapter\u003c\/strong\u003e is a small bridge-rectifier \/ regulator module that lets you power any Circuitron lighting or accessory circuit directly from the layout's track power — no separate transformer required.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Accepts AC, DC, or DCC track power on its input and produces a stable DC output suitable for lighting drivers (1031, 1100, 1302, 1400) and small accessory circuits. Simplifies wiring on small layouts and dioramas.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e AC, DC, or DCC track power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Filtered DC for Circuitron lighting \/ flasher drivers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Powering 1031, 1100, 1302, 1400, etc. from track power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 2002 (Walthers 800-2002)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098457137334,"sku":"800-2002","price":18.02,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_10263fa4-f178-47cb-b612-a286228a0e29.png?v=1777603297"},{"product_id":"circuitron-2003-tp-3-track-power-adapter-new","title":"Circuitron 2003 TP-3 Track Power Adapter (Higher Capacity)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 2003 TP-3 Track Power Adapter\u003c\/strong\u003e is a higher-capacity bridge-rectifier \/ regulator module — like the TP-2 but with more current headroom for driving multiple lighting circuits from track power.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Accepts AC, DC, or DCC track power on its input and produces a stable DC output. Use when one TP-2 isn't enough — typically when you're running multiple ditch-light \/ strobe \/ EOT circuits off the same source.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e AC, DC, or DCC track power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Filtered DC (higher capacity vs. TP-2 2002)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Powering multiple Circuitron lighting \/ accessory circuits from one source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 2003 (Walthers 800-2003)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098458153142,"sku":"800-2003","price":21.28,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_886ba853-e9fb-4740-ac6a-56f6114d4ec8.jpg?v=1777603302"},{"product_id":"circuitron-5202-dt-2-grade-crossing-detection-unit-w-full-logic","title":"Circuitron 5202 DT-2 Grade Crossing Detection (Full Logic, Bidirectional, 4 Opto-Sensors Included)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5202 DT-2 Grade Crossing Detection Unit w\/Full Logic\u003c\/strong\u003e is Circuitron's flagship \u003cstrong\u003ebidirectional grade-crossing detection circuit\u003c\/strong\u003e — built to duplicate prototype crossing behaviour for any train length from a single locomotive to a 100-car drag.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Uses four \u003cstrong\u003eOpto-Sensors\u003c\/strong\u003e (included) embedded between the ties — two on each side of the crossing — to produce true prototype action: crossing flashers activate as the train approaches, remain active while the train occupies the crossing, and turn off only after the rear of the train clears. Works with AC, DC, or DCC track power. No modifications to rolling stock required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection method:\u003c\/strong\u003e 4 × Opto-Sensors (included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirection:\u003c\/strong\u003e Fully bidirectional\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrain length:\u003c\/strong\u003e Independent — handles 1 to 100+ cars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack power:\u003c\/strong\u003e AC \/ DC \/ DCC (any system)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Logic level — drives Circuitron flashers (FL-2 \/ FL-2HD), bell (BR-3), external relay (ER-1 \/ ER-2)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 10–18 V AC or DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5202 (Walthers 800-5202)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e The most prototype-accurate grade-crossing circuit on the market. Pair with FL-2HD (5122) for flashers and BR-3 (5703) for the recorded bell.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098463101110,"sku":"800-5202","price":69.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_1512c817-15ca-4cf7-a18b-5531d17b704c.png?v=1779570246"},{"product_id":"circuitron-5203-dt-3-grade-crossing-detector-single-direction","title":"Circuitron 5203 DT-3 Single-Direction Grade Crossing Detector (Opto-Sensor Based)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5203 DT-3 Grade Crossing Detector Single Direction\u003c\/strong\u003e is a \u003cstrong\u003esingle-direction grade-crossing detection circuit\u003c\/strong\u003e — Circuitron's value-priced version of the DT-2 for one-way mainline situations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Uses proven OptoElectronic detection (Opto-Sensors mounted between the ties) to produce accurate grade-crossing action for any train length — from a single locomotive to a 100-car train — when the train approaches from one defined direction. No rolling-stock modifications. Works with AC, DC, or DCC; any scale.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection method:\u003c\/strong\u003e OptoElectronic (Opto-Sensors required, sold separately)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirection:\u003c\/strong\u003e Single direction (use DT-2 for bidirectional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrain length:\u003c\/strong\u003e Independent — 1 to 100+ cars\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack power:\u003c\/strong\u003e AC \/ DC \/ DCC (any system)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 10–18 V AC or DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Controls Circuitron flashers, BR-3 bell, external relays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5203 (Walthers 800-5203)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Step up to the DT-2 (5202) if your crossing sees traffic in both directions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098464215222,"sku":"800-5203","price":32.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_3e36a35d-5c41-461f-b9c8-89b2da34123a.jpg?v=1777603317"},{"product_id":"circuitron-5204-dt-4-rolling-stock-detector","title":"Circuitron 5204 DT-4 Rolling Stock Detector (Photocell-Based)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5204 DT-4 Rolling Stock Detector\u003c\/strong\u003e is a \u003cstrong\u003esimple photocell-based detection circuit\u003c\/strong\u003e — triggers an output whenever a piece of rolling stock passes over (or sits on) the sensor location.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Uses an Opto-Sensor \/ photocell between the ties to detect anything that blocks the ambient light — locomotives, cars, even an out-of-track derailment. Outputs a logic-level signal that can drive Circuitron flashers, the BR-3 bell, relays, or trigger automation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection method:\u003c\/strong\u003e Photocell \/ Opto-Sensor (between-ties)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Logic-level — drives flashers, bells, relays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Industrial-spot detection, hidden-track occupancy, simple yard-arrival triggers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5204 (Walthers 800-5204)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Cheaper than the DT-2 \/ DT-3 for situations where you just need to know 'something is there' — but doesn't include the direction \/ train-length logic of a real grade-crossing controller.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098465198262,"sku":"800-5204","price":70.68,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_bd2ebd2c-64e9-405f-91d5-87c751060497.jpg?v=1779570065"},{"product_id":"circuitron-5302-ps-2-18v-ac-to-12v-dc-1-amp-regulated-power-supply","title":"Circuitron 5302 PS-2 Regulated Power Supply (18V AC → 12V DC, 1A)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5302 PS-2 18V AC to 12V DC 1 Amp Regulated Power Supply\u003c\/strong\u003e is a regulated bench-style power supply module that takes a standard 18 V AC layout-accessory transformer output and produces a clean 12 V DC, 1 A supply.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Provides clean regulated 12 V DC for all Circuitron detection, automation, and lighting circuits. Use one PS-2 to feed several boards from a single AC transformer.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput:\u003c\/strong\u003e 18 V AC (standard layout accessory transformer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e 12 V DC, regulated, 1 A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Powering AR-1 \/ AR-2 \/ DT-2 \/ BD-2 \/ ER-1 \/ ER-2 \/ 5820 TL-1 etc.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5302 (Walthers 800-5302)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Use one PS-2 per group of nearby circuits rather than running long DC wires from a single supply.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098466181302,"sku":"800-5302","price":25.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_2431cbc2-65d1-4777-867c-5710f3000f74.jpg?v=1777603326"},{"product_id":"circuitron-5400-ar-1-automatic-reverse-circuit","title":"Circuitron 5400 AR-1 Automatic Reverse Circuit (5A Relay, 12V DC, Opto-Sensor Triggered)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5400 AR-1 Automatic Reverse Circuit\u003c\/strong\u003e is an \u003cstrong\u003eautomatic train reversing circuit\u003c\/strong\u003e — flips the direction of DC track power whenever the Opto-Sensor is covered (or a pushbutton is pressed) for point-to-point automation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Changes track-power direction when the Opto-Sensor (sold separately) is covered by an approaching train. Perfect for test tracks, window displays, point-to-point mine trains, or automatic reverse-loop operation on small DC layouts. Pushbuttons may also be connected for manual reversing. 5 A capacity relay handles big locomotives.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrigger:\u003c\/strong\u003e Opto-Sensor (covered) or external pushbutton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay rating:\u003c\/strong\u003e 5 A capacity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 12 V DC input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e 2 × 3 inch PCB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e DC test track, window display, point-to-point automation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5400 (Walthers 800-5400)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e For DCC reverse loops, you want a true DCC autoreverser (e.g. Digitrax AR1 \/ NCE Auto-SW). The AR-1 is a DC track-power direction reverser, not a phase-flip module.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098466934966,"sku":"800-5400","price":63.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_159d463a-b749-4e23-a739-fe818dc1c155.jpg?v=1779570185"},{"product_id":"circuitron-5401-ar-2-automatic-reverse-circuit-with-adjustable-delay","title":"Circuitron 5401 AR-2 Automatic Reverse Circuit with Adjustable Delay","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5401 AR-2 Automatic Reverse Circuit with Adjustable Delay\u003c\/strong\u003e is the \u003cstrong\u003eAR-1 with an added adjustable delay timer\u003c\/strong\u003e — train pauses at the end of each run before reversing, just like the prototype pulling up to a stop.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Same auto-reverse function as the AR-1 (5400) but adds a user-adjustable delay between triggering and direction change. Adjustable from a few seconds to ~30+ seconds — long enough for a passenger train 'station stop' or a mine-load swap.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrigger:\u003c\/strong\u003e Opto-Sensor (covered) or external pushbutton\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelay:\u003c\/strong\u003e User adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 12 V DC input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e DC point-to-point with realistic 'station stop' pause\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5401 (Walthers 800-5401)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e Use a long delay to simulate a freight-yard switching pause, or a short delay for continuous trolley-line back-and-forth.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098468409526,"sku":"800-5401","price":76.56,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_a31224f3-8a53-45a3-9391-343cb5efa858.gif?v=1777603336"},{"product_id":"circuitron-5521-bd-1hd-block-occupancy-detector","title":"Circuitron 5521 BD-1HD Heavy-Duty Block Occupancy Detector","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5521 BD-1HD Block Occupancy Detector\u003c\/strong\u003e is a \u003cstrong\u003eheavy-duty current-sensing single-output block detector\u003c\/strong\u003e — like the BD-1 but with higher current capacity for layouts with multiple sound-equipped locomotives in a block.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Provides one logic-level occupancy output for an isolated block. Higher current rating than the standard BD-1 — handles the larger combined current of multiple modern sound-equipped diesels without saturating.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection method:\u003c\/strong\u003e Current sensing (heavy-duty)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Single logic-level occupancy signal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Blocks that may hold multiple sound-equipped diesels simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5521 (Walthers 800-5521)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. 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Use the relay contacts for automatic train control (power-off on block ahead), layout-lighting automation, or to switch heavier loads than the detection circuit can drive directly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay type:\u003c\/strong\u003e SPDT (single-pole double-throw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact rating:\u003c\/strong\u003e 2 A (AC or DC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil:\u003c\/strong\u003e 12 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 11–14 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrives from:\u003c\/strong\u003e Any Circuitron detection-circuit output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5604 (Walthers 800-5604)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. 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Eliminates the coil burnout that happens when a momentary switch sticks 'on'. Built-in alternating logic toggles between left \/ right with each press.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Twin-coil switch machines (Atlas, Peco PL-10, Kemtron, etc.)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive:\u003c\/strong\u003e Capacitor discharge — coil-safe\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic:\u003c\/strong\u003e Built-in alternating (single pushbutton toggles direction)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5606 (Walthers 800-5606)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eTip:\u003c\/strong\u003e For slow-motion stall-motor machines like the Tortoise \/ SMAIL, you don't need this — they run on continuous low-current DC and are inherently coil-safe.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098474733750,"sku":"800-5606","price":37.36,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_18831b94-71b4-4060-9e4a-0bbcfaefe2a9.png?v=1779570546"},{"product_id":"circuitron-5624-er-2-external-relay-with-dpdt-relay","title":"Circuitron 5624 ER-2 External Relay Module (DPDT, 2A, 12V Coil)","description":"\u003cp\u003eThe \u003cstrong\u003eCircuitron 5624 ER-2 External Relay with DPDT Relay\u003c\/strong\u003e is the \u003cstrong\u003eDPDT (double-pole double-throw) version of the ER-1\u003c\/strong\u003e — two independent switched circuits from one detection-circuit input.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat it does:\u003c\/strong\u003e Same driver circuitry as the ER-1 (5604) but with a DPDT relay — handy for any situation where one trigger needs to switch two separate loads simultaneously, or for direction-reversal of a DC supply (one pole per rail).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay type:\u003c\/strong\u003e DPDT (double-pole double-throw)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact rating:\u003c\/strong\u003e 2 A (AC or DC) per pole\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoil:\u003c\/strong\u003e 12 V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 11–14 V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor:\u003c\/strong\u003e Two-circuit switching, DC reversing, dual-light layouts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuitron SKU:\u003c\/strong\u003e 5624 (Walthers 800-5624)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Circuitron:\u003c\/strong\u003e A USA-made model-railroad electronics specialist (Maryville, Illinois) founded in the 1970s. Famous for the industry-standard \u003cstrong\u003eTortoise\u003c\/strong\u003e slow-motion under-table switch machine and its surface-mount cousin the \u003cstrong\u003eSMAIL\u003c\/strong\u003e. The full range covers detection (block detectors, Opto-Sensor grade-crossing logic), automation (auto-reversers, external relays, twin-coil alternators), signal \/ lighting electronics (alternating flashers, ditch-light oscillators, strobe drivers), power supplies, and a complete set of Tortoise \/ SMAIL replacement parts plus the solderless \u003cstrong\u003eZipZ\u003c\/strong\u003e connection system. Most circuits work with AC, DC, or DCC track power unless specifically noted otherwise.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Circuitron","offers":[{"title":"Default Title","offer_id":45098475847862,"sku":"800-5624","price":20.21,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_3b17e5c5-6414-496c-afd3-ee0123aa5884.png?v=1779570366"},{"product_id":"digitrax-bdl716-block-detector-new","title":"Digitrax BDL716 16-Section LocoNet Block Detector","description":"\u003cp\u003eThe \u003cstrong\u003eDigitrax BDL716\u003c\/strong\u003e is the \u003cstrong\u003e16-Section LocoNet Block Detector\u003c\/strong\u003e — a \u003cstrong\u003eDCC block-occupancy detector\u003c\/strong\u003e that monitors 16 track section(s) and reports occupancy state to your signalling system, dispatcher panel, or computer interface over LocoNet.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e16 detection sections\u003c\/strong\u003e per board — economical for large layouts\u003c\/li\u003e\n\u003cli\u003eAll \u003cstrong\u003eplug-in connectors\u003c\/strong\u003e for simple install and easy service\u003c\/li\u003e\n\u003cli\u003eUser-defined as 16 DS reporting addresses, range 1–2000+\u003c\/li\u003e\n\u003cli\u003eEasy setup with on-board option switches (OPSW)\u003c\/li\u003e\n\u003cli\u003ePowered by 2mm DC jack, 8V–22V input\u003c\/li\u003e\n\u003cli\u003eConfigured to operate with booster power from DCS52 \/ DCS100 \/ DCS210 \/ DCS210+ \/ DCS240 \/ DCS240+ command stations, DB210 \/ DB220 boosters\u003c\/li\u003e\n\u003cli\u003eCan split into \u003cstrong\u003etwo 8-DS areas\u003c\/strong\u003e running off two separate boosters\u003c\/li\u003e\n\u003cli\u003eOptional detection + power status LED connector (compatible with LT5C remote indicator)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout LocoNet:\u003c\/strong\u003e LocoNet is Digitrax's two-way control network that connects throttles, boosters, command stations, detection blocks, and signal modules across a layout — using standard 6-conductor RJ12 telephone cable. The two-way communication is what enables advanced features like transponding (knowing which loco is where), real-time slot status, and CV read-back from anywhere on the system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Digitrax:\u003c\/strong\u003e Digitrax is North America's leading manufacturer of DCC systems and has been the architect of the DCC standard since the 1990s. The proprietary \u003cstrong\u003eLocoNet\u003c\/strong\u003e control bus is the most widely-supported throttle and accessory interface in club layouts worldwide, and Digitrax decoders \/ boosters \/ command stations are fully NMRA DCC compliant and interoperable with all NMRA-compliant DCC equipment.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Digitrax","offers":[{"title":"Default Title","offer_id":45098512089270,"sku":"245-BD-BDL716","price":130.4,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_992c4424-2b8e-4763-8678-b5c5184be4c7.jpg?v=1777605464"},{"product_id":"digitrax-cardedge-con-44-3-pack-card-edge-connector-44-pin-edge-connectors-for","title":"Digitrax EDGECON44 44-Pin Card Edge Connectors - 3 Pack (for PM4 \/ BDL16 \/ SE8 Boards)","description":"\u003cp\u003eThe \u003cstrong\u003eDigitrax EDGECON44 (44)\u003c\/strong\u003e is a \u003cstrong\u003e44-Pin Card Edge Connector, 3-Pack\u003c\/strong\u003e — genuine Digitrax replacement \/ installation accessory for serious DCC layouts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUse:\u003c\/strong\u003e Replacement \/ spare card-edge connectors for Digitrax \u003cstrong\u003ePM4-series\u003c\/strong\u003e power managers, \u003cstrong\u003eBDL16-series\u003c\/strong\u003e block detectors, and \u003cstrong\u003eSE8-series\u003c\/strong\u003e signal driver boards. Plugs onto the 44-pin edge of these PCB cards to bring wiring in and out. 3 connectors per pack.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout Digitrax:\u003c\/strong\u003e Digitrax is North America's leading manufacturer of DCC systems and has been the architect of the DCC standard since the 1990s. The proprietary \u003cstrong\u003eLocoNet\u003c\/strong\u003e control bus is the most widely-supported throttle and accessory interface in club layouts worldwide, and Digitrax decoders \/ boosters \/ command stations are fully NMRA DCC compliant and interoperable with all NMRA-compliant DCC equipment.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Digitrax","offers":[{"title":"Default Title","offer_id":45098513662134,"sku":"245-ACC-EDGECON44","price":14.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_ce709b81-7d19-475e-86cc-f14ab416fdae.jpg?v=1779571086"},{"product_id":"digitrax-bxp88-loconet-occupancy-detector-8-detection-sections-w-transponding","title":"Digitrax BXP88 LocoNet 8-Section Occupancy Detector with Transponding","description":"\u003cp\u003eThe \u003cstrong\u003eDigitrax BXP88\u003c\/strong\u003e is the \u003cstrong\u003eLocoNet 8-Section Occupancy Detector with Transponding\u003c\/strong\u003e — a \u003cstrong\u003eDCC block-occupancy detector\u003c\/strong\u003e that monitors 8 track section(s) and reports occupancy state to your signalling system, dispatcher panel, or computer interface over LocoNet.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 detection sections\u003c\/strong\u003e per board with \u003cstrong\u003eone transponding zone per section\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eReports both \u003cem\u003eoccupancy\u003c\/em\u003e and \u003cem\u003etransponded loco ID\u003c\/em\u003e back to LocoNet\u003c\/li\u003e\n\u003cli\u003eIntelligent automatic short-circuit and over-current power management per section\u003c\/li\u003e\n\u003cli\u003eImproves reliability — avoids most full-booster fault shutdowns\u003c\/li\u003e\n\u003cli\u003eMakes transponding implementation straightforward — no separate transponding boards\u003c\/li\u003e\n\u003cli\u003ePer-section status LEDs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAbout Transponding:\u003c\/strong\u003e Transponding is a Digitrax extension to standard DCC occupancy detection — instead of just knowing that \u003cem\u003esomething\u003c\/em\u003e is in a block, transponding lets the system know \u003cem\u003ewhich specific locomotive\u003c\/em\u003e is in each block. 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The proprietary \u003cstrong\u003eLocoNet\u003c\/strong\u003e control bus is the most widely-supported throttle and accessory interface in club layouts worldwide, and Digitrax decoders \/ boosters \/ command stations are fully NMRA DCC compliant and interoperable with all NMRA-compliant DCC equipment.\u003c\/p\u003e\u003cp\u003eIn stock at Oakville Model Trains Depot.\u003c\/p\u003e","brand":"Digitrax","offers":[{"title":"Default Title","offer_id":45098513793206,"sku":"245-BX-BXP88","price":213.7,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5131\/1286\/files\/57_51af30a9-0e90-4d2c-b720-6715e8e037ff.jpg?v=1779570186"},{"product_id":"digitrax-bxpa1-loconet-dcc-auto-reverser-w-detection-transponding-and-power-mgmt","title":"Digitrax BXPA1 LocoNet DCC Auto-Reverser with Detection + Transponding + Power Management","description":"\u003cp\u003eThe \u003cstrong\u003eDigitrax BXPA1\u003c\/strong\u003e is the \u003cstrong\u003eLocoNet DCC Auto-Reverser with Detection + Transponding + Power Management\u003c\/strong\u003e — an \u003cstrong\u003eautomatic reverser\u003c\/strong\u003e that handles polarity mismatches at a reversing section (return loop, wye, or balloon track) by instantly flipping the section's polarity when a train crosses the gap. 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