Author Topic: Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?  (Read 604 times)

sieggs1

  • Fireman
  • **
  • Posts: 17
Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?
« on: April 10, 2026, 05:30:22 PM »
Hey All,

Just wondering how many of you use some kind of Stay-Alive/Keep-Alive capacitor in your locomotives?

How many of your locos have one?

What brand do you prefer to use? RailPro's PBM-2 or something else?

Do any of you roll your own stay-alive capacitors? If so, how do you build it?

I'm curious.

Rob S. "Sieggs"

Coal Valley BNSF

  • Fireman
  • **
  • Posts: 15
Re: Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?
« Reply #1 on: April 12, 2026, 12:47:34 PM »
Not me! I don't need any band-aids and spend extra cash!! Mine run prefect without them after I spent some time figuring it out.   
« Last Edit: April 12, 2026, 07:29:18 PM by Coal Valley BNSF »

sieggs1

  • Fireman
  • **
  • Posts: 17
Re: Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?
« Reply #2 on: Today at 01:24:45 AM »
Coal Valley BNSF,

Excellent. What's your secret? Clean track? Good wiring? Long wheel-base locomotives?

I ask because I am getting back into model railroading after 35 years and I am re-learning all the fundamentals. My old locos from the 1980's run better on RailPro than they did when they were brand new. But I needed a keep-alive for my SW1500 switcher and some other locos to keep them from stalling over unpowered frogs and track that, in the summertime seems to oxidize faster than I can clean it.

I recently started building my own keep-alive capacitor units and I was wondering if anyone else does the same. They can be really cheap and work better than the commercial ones.

Rob S.