I have a Walthers HO passenger dome car that came with a nice LED light board. The big problem is that it flickers terribly. I would like to add a capacitor to the circuit. The image below is the board that goes on the short end of the dome car. The red & black wires on the right go to the larger light board at the other end of the car. The gray pads on the left corners are the rail power contacts. Some of the traces can been seen on this side of the board. There is nothing visible on the other side. I am assuming some traces are buried in the board.
Is anyone familiar with the circuit in this board? Has anyone added a capacitor? I am wondering if the a capacitor could be connected at the + & - minus pads at the bottom of the board.
you can add a capacitor, but if doing large capacitors and/or multiple capacitors, you may want to add a limiting resistor on the charge end to imit incoming rush current …
You could use a super cap module I think. Stay alive module for decoders. They have super caps, a resistor and a diode. The proper cap, resistor, and diode would work. I use to have the circuit. Circuits in the 'Net. Search.
