As long as they are similar to the 51A lamps, socket-wise, I should be fine. I have a pail full of 51A lamps laying around.
Otherwise I will make up some LED lamps for it. I've modified a few of my 6 button sets with white LED's instead of the traditional lamps. Cuts down the load on LB supply, and they last near forever. Just a 470 ohm (I think) resistor and the led soldered to the tabs. I'll find a pic and post it.

Last edited by ChrisRR; 10/22/14 05:45 PM.