modified 8 hours ago

Wiring for 2 JRI signal

00:10:04

This is for a model train signal set up. The logic is if both switches are closed the LEDs on the right will light up. If the bottom switch is closed the LEDs on the right will lit up. My question is how do I recreate the logic with transistors.  I want to turn this into a small circuit board I can wire into my Model train layout.

published 9 hours ago

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