I'm having this exact problem. Was c8 the fix??

OK, I have the exact same thing. I had a power supply that was more or less OK - needed new caps etc., So I put in the new parts per pinwiki and now I have this mess. A hot Q2 and low 60/42. The thing is, this is my second one like this. I finally punted on the last one and stripped off the capacitors and put them into another power supply (that oh, by the way) is working fine. I double checked the cap orientation to the working PS all that. I just can't figure this out for the life of me.

Yes, I know, buy a rottendawg or whatever. I just really want to fix these and maybe learn something in the process. You don't learn anything firing new parts into a machine.

I did exactly that below. I have a bottom board out of another game, so I'm using that as a poor mans test bench.

The first two pictures are of a properly working power supply that I rebuilt. The last one is the one that is not working correctly. I double checked all the caps and they seem to all be orientated correctly. If you notice something please let me know. Also, I added a new insulator under Q2. Also, in case it isn't clear, I'm on the 42v output in the first picture and the 60v output in the last one. I should have done 60v for both.

I'm stumped. Q2 got so hot I damn near burned my fingers on it.

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Hi Ed;
Thanks for writing. Please look at the pictures above, I'm actually on a bench, so there is no short to the plate possible.

Note, however, that I did order a few mica insulators from you a few days ago. Also, I thing I'm going with nylon screws on some of these, as I don't have all the old pass through insulators.

OK, I had a dumbass attack.

I was thinking - what changed? Go back and double check everything.

Took another look at c8. It was installed correctly, but slightly bulging. Further examination showed it was 470uf, not 47. I put in a 47uf cap and it seems to be happy now.

Just need a few shoulder washers.