Re: T912 storage oscilloscope - No 2.7 KV high Voltage


Thanks Max,
I also from Italy, near Varese (Lombardy).
But when I disconnect the diodes CR463 and CR465 of the high voltage, the voltages -120 Vdc and -220 Vdc return to almost correct values, I deduce that Q458 oscillates and is not shorted or interrupted.
Anyway, I will replace it for test.

-- Cheers

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