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In Reply to: RE: DC coupled 6av5/6L6 posted by drlowmu on May 21, 2016 at 17:30:42
Jeff, 6av5 is the power tube, Screen tied to plate. Driving it is a 6dj8 with ~145v plate vdc. The amp has four octal sockets, two with Eia base 6ck (6av5ga) and two sockets 7ac base pinout (6L6/kt88) It can run either type as finals. I have a 20k ohm shunting pot to juggle driver tube plate voltage and vary finals bias. I need to add some form of thd analysis to measutement tools. Still doing some A/B listening tests...JH
Follow Ups:
Nice work. Please post a schematic if possible.
Regards,
David
OK,
There was a "6 something " designated tube, that is equal to half a 12AX7. I didn't check the designation, and THOUGHT ( by mistake ) that the 6AV5 was the driver, a high mu tube, low current, and a 6L6G was the finals.
The amp chassis looks pretty outside in your back yard / daylight photos.
Jeff
Close.
8^)
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