square holes in plates

Posted by FenderLover on March 2, 2016 at 13:13:57

In Reply to: Can any other member second these motions? posted by Jonesy on March 2, 2016 at 06:59:07:

My understanding is the SV-6550B had round holes. These tubes tended to have thermal runaway issues. The SV-6550C went to square holes & use of better grid alignment tool.

Photo is of the 6550B.

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Follow Ups Full Thread

Topic - Are these true Svetlana 6550c winged c ? - cjspu 15:05:46 02/26/16 (16)

Some better close-ups - FenderLover 23:13:07 02/29/16 (7)

Thinking they are winged c's... - Jonesy 08:14:57 03/01/16 (6)

RE: Thinking they are winged c's... - Triode_Kingdom 19:04:35 03/01/16 (5)

Right about that. - Jonesy 19:16:06 03/01/16 (4)

RE: Right about that. - cjspu 02:19:01 03/02/16 (3)

Can any other member second these motions? - Jonesy 06:59:07 03/02/16 (2)

square holes in plates - FenderLover 13:13:57 03/02/16 (0)

RE: Can any other member second these motions? - cjspu 09:28:27 03/02/16 (0)

RE: Are these true Svetlana 6550c winged c ? - FenderLover 07:44:13 02/27/16 (3)

another view - FenderLover 07:49:09 02/27/16 (2)

RE: another view - cjspu 08:04:30 02/27/16 (1)

By 2006 - E-Stat 09:56:37 02/27/16 (0)

RE: Are these true Svetlana 6550c winged c ? - Chuck Y 07:42:16 02/27/16 (3)

RE: Are these true Svetlana 6550c winged c ? - cjspu 07:48:16 02/27/16 (2)

RE: Are these true Svetlana 6550c winged c ? - Jonesy 11:30:07 02/27/16 (1)

RE: Are these true Svetlana 6550c winged c ? - cjspu 11:45:07 02/27/16 (0)

Follow Ups

square holes in plates - FenderLover 13:13:57 03/02/16 (0)

square holes in plates

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