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In Reply to: "Matched" power tubes, what am i missing? posted by Laudanum on July 5, 2016 at 04:14:49:
Matching is only for the conditions under which the tubes are tested.
Were they "matched" for both Gm and current draw?
Matching is usually considered within 10%. If they were matched for a target of 90 mA current draw, then a 9 mA difference may be considered matched.
The # of hours on a tube will also have an effect.
Did the tubes come marked with the test conditions and results?
If it is a reputable dealer, I would let them know and see if something can be worked out for an exchange.
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Follow Ups
- RE: "Matched" power tubes, what am i missing? - baileyler 05:34:02 07/05/16 (5)
- RE: "Matched" power tubes, what am i missing? - Laudanum 05:51:31 07/05/16 (4)
- RE: "Matched" power tubes, what am i missing? - FenderLover 05:55:37 07/05/16 (3)
- RE: "Matched" power tubes, what am i missing? - Laudanum 06:36:20 07/05/16 (2)
- RE: "Matched" power tubes, what am i missing? - FenderLover 06:42:55 07/05/16 (1)
- RE: "Matched" power tubes, what am i missing? - Laudanum 07:04:34 07/05/16 (0)