Great! Thanks guys!
Doug
You should direct your question to Intermountain before you wind up blowing out all of the bulbs by inadvertently feeding them too much voltage or burning out a decoder's function output by too much current draw.
Intermountain is pretty good about answering e-mails.
Could be too much. If there are enough functions, wire the two headlights to seperate functions, that way you can have a steady light plus a Mars light, and then put the two number board lights on a third function for independent on/off control. Prior to installing the decoder, were the lights connected directly to the track pickups, or were they fed through a resistor? If directly to the track, they are 12V bulbs, if there was a resistor on the DC board they are probably 1.5V bulbs. If the parallel set of light bulbs was connected parallel to a couple of diodes, they are probably 1.5V bulbs.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Last night I thought i would install a tsunami (board replacement type) in one if my regal line f units. I pulled the shell, pulled the old board and went to do my standard test with jumpers before final install. It uses 4 bulbs in the nose, two for headlights and 2 for number boards. They LOOKED like 1.5 V lamps so I jumpered them accordingly. DIM. I then hooked them to the 12 V position on the tsunami. Still DIM. ?????? Any thoughts? Upon closer looking, all 4 bulbs are in parallel. To much draw? Thanks Guys!