Hey guys thought some of you might like my idea?
My Electra has shitty 555 globe sockets and testing globes was a nightmare soni made up this rig.
Plugs into j1 j2 & j3 of the lamp board the alligator clip foes on the common wire around the backbox lamps chuck it in lamp test and it tells you which transistors are duds if you can follow my table. Took me 5 minutes to test a full lamp board.