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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: I may be wrong regarding gm reading on B&K 550! posted by Jonesy on September 25, 2008 at 16:24:35:
...not sure on the 550, but on the 650 you simply choose the sensitivity level for "True gm" on the tube chart, instead of the one for "good/bad". For some tubes like the 6SL7 the 650 will ONLY test true gm, not "good/bad".
For example, on the 650, the sensitivity level for a 6SN7 to test "good/bad" is 80, but for true GM it is 63.
Rob"Let there be songs, to fill the air"
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Follow Ups
- No question that the B&K 650 tests true gm... - Skylab 09/25/0817:26:10 09/25/08 (6)
- RE: No question that the B&K 650 tests true gm... - Mr. Droopy-Drawers 18:18:10 09/25/08 (1)
- Well I sure learned something new today... - Jonesy 20:17:59 09/25/08 (0)
- RE: No question that the B&K 650 tests true gm... - Jonesy 18:02:36 09/25/08 (3)
- RE: No question that the B&K 650 tests true gm... - benie 19:46:16 09/25/08 (2)
- to everybody and to benie - katylied 22:38:24 09/25/08 (1)
- RE: to everybody and to benie - benie 04:26:48 09/26/08 (0)
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