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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: Re: 6as7 life continued... posted by bryan on February 16, 2005 at 06:08:34:
Bryan, Since you have 8 X 6AS7 sections per phase (two per tube), it seems unlikely to me that one or two bad sections would seriously affect your listening pleasure. More than once I have noticed that my own MA240s sound just a tad "off" but still excellent and then found out that the cause was due to blown fuses on one or up to three out of six of my output tubes. In other words, it's surprising how subtle the differences are when one or a few output tubes are not doing anything at all, let alone just losing transconductance. All of this is to say that I would take a hard look at your input and driver stages. Check the coupling caps too.
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Follow Ups
- Re: 6as7 life continued... - Lew 13:33:35 02/16/05 (9)
- Same experience in my A-S MA-2s as Lew describes (nt) - Rushton 20:53:39 02/16/05 (0)
- Re: 6as7 life continued... - bryan 17:46:44 02/16/05 (7)
- Re: 6as7 life continued... - Legendre 10:46:59 02/17/05 (0)
- Re: 6as7 life continued... - Lew 06:21:25 02/17/05 (5)
- Re: 6as7 life continued... - Jack Williams 16:59:36 02/17/05 (4)
- Re: 6as7 life continued... - Jack Williams 17:13:18 02/17/05 (3)
- AC Power (was Re: 6as7 life continued...) - Legendre 12:26:31 02/18/05 (0)
- Re: 6as7 life continued... - Lew 06:38:39 02/18/05 (1)
- Re: 6as7 life continued... - Jack Williams 11:33:10 02/18/05 (0)
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