My first attempt at installing a DCC decoder in an old style Life-Like
GP18 (N scale) took much longer than I thought and with perseverance I
succeeded. The loco ran smoothly and the decoder functions all
worked. I even added a light for reversing. After running it for a
while I noticed that the grain of wheat bulbs I had installed where
starting to melt the case badly. I used 12V bulbs - how do I overcome
this heat problem for the next install?