Author Topic: Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?  (Read 797 times)

sieggs1

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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

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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

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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.

CPRail

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Re: Who's Using Stay-Alive/Keep-Alive, PBM-2 Capacitor Modules?
« Reply #3 on: Today at 08:39:18 AM »
I use the TSC Keep-Alives. It's what I started doing my installs with. So far, 90% of my installs barely have enough room for the LM, the Keep-Alive and a Speaker. There's no room for the relatively huge RailPro PBM-2! I do have one Rapido loco factory installed with their Mo'Power unit, but it barely gives me 3 seconds of power, so I'm not sure about it, but the rest of the install is working perfectly, so I'm not worrying about it!
Ian Lisakowski
Modelling CP Rail & VIA in the early 80's