When the Model Railway YouTube Community Group coach tour visited Strathpeffer Junction, we took the opportunity to drop the coach into Fodderty TMD for a quick once-over and flashing tail lamp installation.
This in-depth, two-part how-to series takes you through the installation process, step-by-step. Part A looks at designing and building a small rectifier and stay-alive/keep-alive circuit, from component selection to soldering.
Part B looks at adding a switch, installing the red tail lamp itself and, because the flasher unit used requires a specific voltage, the design and build of a small rectifier circuit.
The circuitry used in this video series is just as applicable for coach lighting circuits or most other situations where you need to get power from the tracks into a coach or wagon to power a light.
You can download the schematic for the circuitry here:
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You can buy items similar to/the same as some of the consumables featured in this how-to via these Amazon affiliate links:
Prototyping circuit board: https://amzn.to/2OzU2Ez
Bridge rectifiers: https://amzn.to/2NYMQRq
Electrolytic capacitors (1000uf 25V): https://amzn.to/2n4Jm45
Electrolytic capacitors (mixed box): https://amzn.to/2v727bB
+5V 150mA voltage regulator: https://amzn.to/2n2KWDy
Please note: If you choose to follow any of the steps or suggestions outlined in the video, you do so at your own risk and any damage or injury to yourself, your models, your equipment or others is your own responsibility.