Quote:
Originally Posted by Herald1360
I expect Mr. Hennessy will be along soon.......
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Fashionably late, as always
Good advice given so far. It might be worth checking T4, as that can cause strange faults.
It's possible the output devices are leaking - especially if they've been over-heated for some time. To test for this, temporarily short the two bases together. The quiescent current (via the test link) should drop to nothing in this state - if not, try replacing the output devices.
Good luck,
Mark