I find myself in the situation of having to bump my thread, since after the initial success I had with this issue I've noticed something else that I'm curious about.
First off though, Bruce - sorry I didn't reply to you with the Digi-key part number for the capacitors I got... I actually ended up ordering them off of Amazon under this description: Uxcell a11102000ux0341 50x DIP Low Voltage Ceramic Disc Capacitors, 10000pF, 5OV It looks like these are still available on Amazon today.
Anyway, on to the new issue... When the engine moves across switches, the headlight that isn't lit briefly flashes on then back off and the headlight that is lit flickers slightly. I'd almost describe as if the board "forgets" what the state of the lights should be if the supply voltage flickers when passing over a switch. This doesn't happen 100% of the time on all switches, but does happen the majority of the time when passing over any given switch. I've since performed the same dummy upgrade to a second engine, and it displays this behavior also - so what's going on wasn't just a one off occurrence.
What would be the best way to address this issue, if anyone else has had to address this also? Would a capacitor across the hot and ground from the trucks work, and if so, what would be an appropriate specification for one?
Thanks!
