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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: 7241, 7242 posted by Lew on October 20, 2004 at 08:24:16:
The 7241 has 3 cathodes and 3 heaters - not really all that different from a scaled-up version of the 6336A, [most versions of] which have 2 cathodes and 2 heaters.The problem is the same that exists with the majority of pass tubes: notoriously mismatched sections.
In my experience, the 7241 is no worse than either the 6336A or the 6AS7 in this regard. In general, one has to either abandon the idea of paralleled sections/tubes or else accept these limitations.
The WE 421A is an exception to this rule.
BTW: I've never used [or even seen] the 7242.
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Follow Ups
- mismatched sections - Jim Dowdy 17:39:17 10/20/04 (3)
- Re: mismatched sections - Tre' 09:12:19 10/21/04 (2)
- Re: mismatched sections - Lew 12:16:43 10/21/04 (1)
- Thanks Lew - Tre' 13:10:33 10/21/04 (0)
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