{"product_id":"train-control-systems-1668-ka4","title":"Train Control Systems 1668 KA4 Keep-Alive Decoder Power Supply","description":"This is a Train Control Systems 1668 KA4. The Keep-Alive (KA) devices are used to supply power to decoders during times of power interruption due to dirty track or problematic track work. KA4 will power an HO-Scale locomotive with headlights on for approximately 6 to 20 seconds (depending on the locomotive and the efficiency of the motor). This Keep-Alive™ includes a blue and a black w\/ white stripe wire with which to attach it to a decoder. Dimensions: .52” x .52” x .45” or 13.22mm x 13.22mm x 11.55mm.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Factory New (\u003ca href=\"#\" title=\"C-9: All original; unused; factory rubs and evidence of handling, shipping and factory test run. Standards for all toy train related accessory items apply to the visual appearance of the item and do not consider the operating functionality of the equipment. Condition and Grading Standards are subjective, at best, and are intended to act as a guide.\"\u003eC-9\u003c\/a\u003e)\u003cbr\u003e\u003cstrong\u003eOperational Status:\u003c\/strong\u003e \u003ca href=\"#\" title=\"This item is brand new from the factory.\"\u003eFunctional\u003c\/a\u003e\u003cbr\u003e\u003cstrong\u003eOriginal Box:\u003c\/strong\u003e Yes (\u003ca href=\"#\" title=\"May have store stamps and price tags. Has inner liners.\"\u003eP-9\u003c\/a\u003e)\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Train Control Systems\u003cbr\u003e\u003cstrong\u003eModel Number:\u003c\/strong\u003e 1668\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eScale\/Era:\u003c\/strong\u003e HO Scale\u003cbr\u003e\u003cstrong\u003eModel Type:\u003c\/strong\u003e Control\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThe Trainz SKU for this item is P12255769. \u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-size: 6px !important; color: #d3d3d3 !important; line-height: 8px !important;\"\u003eTrainz Product Id: 12255769\u003c\/span\u003e","brand":"Train Control Systems","offers":[{"title":"Default Title","offer_id":39261035626618,"sku":"P12255769","price":40.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1260\/4747\/files\/KA4_4173119.jpg?v=1753365251","url":"https:\/\/www.trainz.com\/products\/train-control-systems-1668-ka4","provider":"Trainz","version":"1.0","type":"link"}