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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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I was given some of these 12ax7s and they look like they are designed like a Guided grid valve. You can see the "Active Anode Area" in my picture. They look like they are built like a 6gk5.I wonder how they get a tube, that is designed so differently (than the standard 12ax7), to act like a 12ax7?
Most of the plate is screened from the grid so tubes made this way have almost no interelectrode capacitance (and therefore almost no Miller capacitance).Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
Edits: 04/28/24 04/28/24
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Topic - JJ 12ax7 - Tre' 20:30:23 04/28/24 (13)
- RE: JJ 12ax7 - dogscanskate 05:44:07 04/29/24 (12)
- Thanks, I see that now. - Tre' 09:11:41 04/29/24 (11)
- RE: Thanks, I see that now. - Mendel 16:10:08 05/01/24 (10)
- RE: Thanks, I see that now. - Tre' 19:40:40 05/01/24 (9)
- JJ makes 7 or 8 different 12ax7 types...- - Mendel 19:20:00 05/02/24 (7)
- Second that_nT - Cleantimestream 13:24:53 06/01/24 (0)
- I wonder how the JJ E83CC compares with the JJ ECC 83s which is - Tre' 10:23:29 05/03/24 (0)
- "Harmonically Rich" - Triode_Kingdom 08:18:23 05/03/24 (3)
- RE: "Harmonically Rich" - Tre' 11:09:44 05/03/24 (2)
- RE: "Harmonically Rich" - Triode_Kingdom 14:11:27 05/03/24 (1)
- I agree, that is weird. nt - Tre' 14:18:06 05/03/24 (0)
- Amen, brother! +1 - Sondek 06:45:52 05/03/24 (0)
- RE: Thanks, I see that now. - Nunki 02:14:14 05/02/24 (0)
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