01-12-2013, 10:30 PM
Well, see if that makes a difference. My line voltage is 126V. Dropping the primary voltage to 108 made almost a 100V (high Voltage secondary) change on the Zenith 52 I am working on now.
My DVM has no trouble measuring current at 400V, so I break the HV line at the rect and measure the current draw. Sometimes you have to guestimate from the tube guide and add the values up to get an expected total. If your measurement is very far off - 10 or 15 ma high - start looking for a reason.
Be careful.
My DVM has no trouble measuring current at 400V, so I break the HV line at the rect and measure the current draw. Sometimes you have to guestimate from the tube guide and add the values up to get an expected total. If your measurement is very far off - 10 or 15 ma high - start looking for a reason.
Be careful.
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