I'm having a recurring problem in my NBA FASTBREAK:
when the player 2 shoot, my tip 102 transistor burns (Q86).

Well, I solved half the problem by buying new coil ae23-800 in pinball life.com , but still burned this tip 102 (Q86), and it burned the F118 fuse (not everytime)

I was using tips here from Brazil, but I decided to buy tip 102 on marco´s website, but it still burns after two or three shoots with player 2.

I solved the problem as follows, I took an original tip of the flash that does not use, Q26, and put it in Q86, it stopped giving problem.

now comes my questioning: why 50v coils only original transistors support without damage? Which transistors do you use when you need to switch on your driver boards? Where do you buy them? Why do not the new transistors works good the use of coils ????

im having this problem only with tips 102, tips 36c i can use anyone

nice ideas ,but this coil ae 23 800 doenst have diodes

great im gonna test this

I managed to solve the problem by jumping the machine for 220v, the problems stop acurbing, and this also happened with a NGG mine

problem solved: the transformer the varnish of the wires was old, so the energy came up to the board that should arrive
, I solved the problem reconditioning the transformer.