I'm in the process of decoderizing a Proto2000 SW9/1200, and I have a
question (or 2) using a Digitrax DH121.
- The P2K manual suggests removing the weight over the front truck to
make room for the decoder, so I did that and screwed a piece of
styrene in it's place to keep the decoder and it's wires out of the
worm gear (and to keep gear lube off the decoder). Has anyone figured
out a way of keeping the wires off the flywheel?
- The bulbs that come with P2K locos are 2 volt bulbs, but the decoder
puts out 12v. I'm experimenting with series voltage dropping
resistors, but they get pretty hot. I checked a couple of the hobby
shops, but the only 12v bulbs they have are 2-3 times bigger than the
stock P2K bulbs. Anyone got an elegant solution, or should I just go
with the resistor(s) and make sure they aren't in contact with any
- The reverse light is buried in the roof of the cab, and uses contact
wipers mounted on the inside of the hood to contact the circuit board
when the loco is assembled. I removed that board, and all the wiring
to it for the decoder installation. I thought about running wires, but
they get in the way as they bunch up under the hood as I re-assemble
the loco. Any ideas?
I'm sure I could come up with something eventually, but I figure
someone has done this before, and can help to shorten my learning
Winnipeg, Manitoba, Canada