I bought a couple of PCC street cars with dead circuits boards and replaced the boards with Dallee reverse units. When I installed the Dallee resistor the rear lights illuminated but the front ones didn't but the Dallee grain of wheat bulbs work when installed. Out of curiosity I put very low track power on to one of the MTH lights and it lit up for and second and then burned out. Don't understand why the MTH lights don't work when used with the Dallee resistor. Thanks! Bill Makel
Replies sorted oldest to newest
MTH PCCs have two different light harnesses. If memory serves, the Protosound cars use 3v bulbs, the Locosound cars use 14v bulbs and never the twain shall meet, as it were. Not sure which harness the Digital Reverse Unit-only cars use, but I THINK it's 3v. The rough part is that the two harnesses LOOK identical, but if you mix 'em up...well. Anyhow, just replace the MTH bulbs with the Dallee bulbs and all will be copacetic. The rear lights have a voltage regulator to run the LEDs, so any old track voltage will suit them just fine.
Good luck and keep us posted!
Mitch
Protosound uses 1.5V bulbs, I believe Locosound uses the 6V bulbs.
gunrunnerjohn posted:Protosound uses 1.5V bulbs, I believe Locosound uses the 6V bulbs.
Okay, I sit corrected. The harnesses will plug into each other, which leads to problems (I speak from sad experience).
Mitch
Correct Mitch, they all use the same connector, not a great decision on MTH's part. 
Thanks folks, installed the Dalle lights and everything is working. Bill
Attaboy! (goes and runs a couple MTH PCCs in Bill's honor) ;-)
Mitch
Access to this requires an OGR Forum Supporting Membership
