Quote:
Originally Posted by Vectis68
The grid voltage has increased from 0.5mv to 2.1mv when tuned to a station.
The cathode voltage has increased slightly from 4.8v to 5.0v when tuned.
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There shouldn't be any cathode voltage to speak of WRT chassis/ground because the cathode should be connected to chassis/ground.
What's the DC voltage WRT Chassis/ground at test point "A" in the schematic when tuned to a decent FM signal ?
Lawrence.