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Philco 90 grid voltage and RF choke
#8

Looking at the voltages...most seem OK to me. Like, the audio 27 grid is connected (the tiedot is not visible) to Rect neg (centertap) via 24 resistor 1M value. That will make it negative.
The second detector plate voltage is always much higher than what results from checking it with a DMM. Its grid indeed should be positive to filament and zero more or less to Chassis: -4V I cannot explain, needs to be re-measured.
Etc.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
Philco 90 grid voltage and RF choke - by Davidra - 04-10-2016, 01:26 PM
RE: Philco 90 grid voltage and RF choke - by morzh - 04-11-2016, 11:15 AM



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