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In Reply to: RE: schematic posted by Tre' on August 22, 2011 at 12:45:13:
Install two resistors and remove the cathode bypass capacitor as shown.Drive the output stage with 1kHz.
Measure the AC voltage across each added resistor. Calculate the current.
Now measure the AC voltage across the cathode resistor. Calculate the current.
What happened to the missing current?
That missing current is not flowing through the common cathode resistor and it is also not flowing through the power supply.
It's flowing in a circle that does not include the common cathode resistor or the PS.
It's flowing through the whole primary of the OPT and the tubes and the added resistors.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 08/22/11
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- More - Tre' 13:04:19 08/22/11 (0)
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