7603 HV oscillator doesn’t start up


Assembly: CRT Circuit (8)
New el. caps.
Transistors checked with multimeter (don’t own a working curve tracer until the said 7603 is repaired. So stupid!). Read that TO-3 are factory selected and must have low gain, right?u

Mainframe power supply restored. All voltage checked within tolerances.

Any ol’timer clue?


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