I’m in the process of wiring my layout so I’ll have battery/rc and track power. I bought a used Trainpower 6200 that will work fine for now but it has an interesting quirk. It constantly feeds power to the tracks, enough to power the LGB Forney I just bought. Any thoughts? No, I’m not ready to shoot it yet!
Not familiar with that one. Does it have two sets of screws on the back? One may be constant voltage for accessories, and the other variable voltage for the train.
EDIT - I Googled it - Hundreds of hits but not a single picture of the back. It looks like the accessory output is AC, so if hooked up wrong your train shouldn’t run at all. It has a Mode switch for HO Vs. G, but even if set for HO (14 Volts) you should get a variation in the power when rotating the throttle.
Might be a bad one.
EDIT 2 - I may have misunderstood. When the throttle is at Zero the Forney still moves? Does it go faster was you increase the throttle?
Doug. I have one of these. IF you can’t get your working right let me and I can send you the one I have.
What happens in reverse?
Doug,
I’m betting you’re on the wrong terminals.
I once did the same with a 6200 I had. My early Big Hauler took off 
Ralph
Geoff, thank you for your offer. If I get a chance today I may open it up and see what’s going on. It is running on what I would call high in forward and reverse.
Since I have such poor eyesight I was going to buy a Train Engineer and if I understand how they work this would solve the problem?
User’s manual:
http://www.modelrectifier.com/resources/trainsound/AA222.pdf
(Not very useful for repair, though.)
Doug,
I’m not an expert, but since the TE trackside unit has been used in a trailing battery car, I would guess that the MRC 6200 in full throttle DC (broken) mode would work well to feed the TE, which would control the output voltage and polarity.
What happens to the track voltage when you switch between Mode 1 (LS) and Mode 2 (HO)?
Sincerely,
Joe Satnik
It doesn’t seem to make any difference.
Doug,
Gut feel, no guaranties whatsoever,
Internally:
A wire between the throttle (knob) variable resistor and the electronics board has broken off.
Can you get inside? Can you solder?
Joe Satnik