Very old pignose 7-100

[52 Bill]

I've already hit them all with freeze spray and the issue didn't change.

Cooling a dead transistor won't bring it back to life.

Do you have a multimeter? You should test the transistors to see if any are open or shorted. Then you can make a decision to buy new ones or not.

[Jazz P Bass]

Here is the schematic.

7-100--R.pdf