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In Reply to: RE: Thanks posted by DAK on November 03, 2015 at 10:07:42
My suggestion was to leave the 500 ohm resistor in place and use a switch to place a 220 ohm resistor in parallel with that 500 ohm resistor when 150 ohms are wanted and out of circuit when the 500 ohms are wanted.The 220 ohm resistor could be permanently connect to ground and the other end could be switched to connect to the cathode or disconnected from the cathode.
He uses one shared cathode resistor for both output tubes so it would only take one single pole single throw switch to get the job done for his stereo amplifier.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 11/03/15Follow Ups:
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