Re: Gould/ Advance OS3000A/ PO Oscilloscope 16A
Apparently common causes include heater-cathode leakage in the oscillator( circuitry/transformer?), bad neons or bad coupling caps in the z mod/unblanking CRT circuits.
Appropriate circuit Diagrams etc. to follow.
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Last edited by Tim; 1st Oct 2019 at 8:25 pm.
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