Magnetic couplings are popular with many modellers who desire the automatic uncoupling of rolling stock in their...
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How do magnetic couplings work?Read more -
Why does my railway analogue controller keep cutting out?Read moreThere are a few reasons why your analogue controller could be cutting out, but the most probable cause is a short...
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Do cambers help model trains traverse a bend?Read moreIn real life, railway tracks tilt slightly as they negotiate curves. The tilt is known by many names, including a...
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Is it better to spray primer on or use a brush?Read moreThe primary objective of using a primer is to allow your paint to better adhere to your model. What you don't want to...
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What type of oil should I use in a smoke generator?Read moreAs the topic of "What type of oil should I use in a smoke generator?" involves mixing oil, heat, electric and your...
How do I recognise a 21 pin DCC socket?
Model railway 21-pin decoder sockets are easy to recognise. They are usually located on top of a circuit board inside the model and feature 21 pins approximately 5mm in length. The pins are arranged in two parallel rows, one row of 10 and another of 11.
If the pins are not immediately obvious when you open up your locomotive, it is likely because a blanking plug is already in the socket. A blanking plug looks like a smaller version of a decoder, but with less circuitry printed on it.
Take care when removing blanking plugs or decoders from sockets as the pins can be easily bent. A pair of long-nose or needle-nose pliers are ideal for the job.
Posted in: Power and control
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