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211 Bias overload.......
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Posted on July 24, 2024 at 01:57:23 | ||
Posts: 358
Location: Australia Joined: June 4, 2003 |
![]() Thanks experts... I am not a technician ...just electronics capable ... From a visual view nothing seem to be out of place..exploded or overheated.... Based upon the attached circuit....... Why would all of a sudden the bias to the 211 skyrocket...... The plate is glowing...never seen before and obviously not right... Turning the bias pot make no difference ....... all valves have been tested and are good [in another amp] What component or chain is likely the cause.... if not obvious will need to take to tech... Again ...Many Thanks |
C3 nt, posted on July 24, 2024 at 19:59:10 | |
Posts: 17548
Location: So. Cal. Joined: February 9, 2002 |
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Have Fun and Enjoy the Music "Still Working the Problem" |
RE: 211 Bias overload......., posted on July 25, 2024 at 07:47:46 | |
Posts: 1070
Location: Florida Joined: October 17, 2003 |
VAL International.... Chinese for sure |
RE: 211 Bias overload......., posted on July 26, 2024 at 03:51:08 | |
Posts: 5437
Location: NYC Joined: April 27, 2001 |
at what point in the schematic was the problematic point? dave |