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41
RailPro Specific Help & Discussion / Re: Newbie Module Install #1
« Last post by G8B4Life on August 07, 2025, 09:03:48 PM »
Quote from: LVRR1856 on August 06, 2025, 10:10:10 PM
...I'd like to keep the Incand. Bulbs at first, easy to change out later, assume they will work at 5v from what I understand is the voltage putout of the modules.
Question is .... is this a fact? Incand will work? , no resistors needed ? or just bite bullet and do LEDs ?

This is incorrect. The output of the LM-3S outputs is slightly less than track voltage, so almost 14v. I don't know what rating of the bulbs used in P2K locomotives was but if they are 12v then your likely fine (just turn the brightness down to essentially lower the output voltage). If the bulbs are 1.5 or 3v etc then you'll need to appropriately lower the voltage with external components, or just replace with LEDs and resistors anyway..

- Tim
42
RailPro Specific Help & Discussion / Re: Where to buy RailPro
« Last post by LVRR1856 on August 07, 2025, 02:43:48 PM »
Just bought 2 WH-9s from Squeaky....
43
RailPro Specific Help & Discussion / Re: Proto 2000 GP7
« Last post by LVRR1856 on August 06, 2025, 10:21:55 PM »
Well thats not too encouraging Twinstar.

Just picked up a couple of cheap ones to experiment with.

RP vs DCC install I see lots of YT vids on DCC installs on P2Ks and most all do milling and/or hard wiring anyway.

No room for modules and speakers pretty much for both systems. But if I weight the Pros and Cons - I want RP, just seems easier.

Guess I will find out. Giving it a try now.
44
RailPro Specific Help & Discussion / Newbie Module Install #1
« Last post by LVRR1856 on August 06, 2025, 10:10:10 PM »
Hey all,
Taking the first step and installing my first module. LM3-s into a P2k GP-18, going to try the 8 pin to 9 pin plug out.
I have some milling of the weight to make room, no problem, probably will with most installs ...

Reading some older posts, some guys left the Incandescent bulbs in, others added LEDs.
I'd like to keep the Incand. Bulbs at first, easy to change out later, assume they will work at 5v from what I understand is the voltage putout of the modules.
Question is .... is this a fact? Incand will work? , no resistors needed ? or just bite bullet and do LEDs ?

If LEDs ... question is ...
The ones I have have the preinstalled resistor on the positive wire, LM3s diagrams show it on the neg side ... does it matter ?

Figured I'd start a fresh thread on this. Thanks
45
RailPro Specific Help & Discussion / Re: Where to buy RailPro
« Last post by William Brillinger on August 05, 2025, 07:37:35 AM »
Squeaky's Trains added.
46
RailPro Specific Help & Discussion / Re: Where to buy RailPro
« Last post by sieggs1 on August 04, 2025, 09:10:43 PM »
Hi All,

I just bought my brand new LM-3S-21 and controller from Squeaky's Trains.

They should be on this list, too.

Rob S.
47
General Discussion / Re: Looking to put RP 3-s into an RDC
« Last post by gregeusa on July 23, 2025, 10:29:27 AM »
QSI has an excellent sound file, but he's never going to use DCC again... (of course the QSI will work in DC mode too.)
48
General Discussion / Re: Looking to put RP 3-s into an RDC
« Last post by darryl.trains on July 23, 2025, 12:57:25 AM »
One came close but I didn't like it. Rapido I think has a fair sound for their RDCs but then copy right might not be worth a chance ? I had to give up as my cheap windows machine went south and I'm not going to buy another one any time soon.  toot toot Darryl in HOT Yuma Arid-Zona
49
General Discussion / Re: Looking to put RP 3-s into an RDC
« Last post by LVRR1856 on July 22, 2025, 07:28:02 PM »
Darryl - did you ever find a RDC sound track ?

I would say maybe an old F unit horn /engine or a GG1 ? Could be a close sub to get by with.
50
General Discussion / Re: Is it a nice deal ?
« Last post by LVRR1856 on July 22, 2025, 03:30:49 PM »
One year later - yes that was a steal.

Anybody have any LM3s's they want to unload ? I'm interested.
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