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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Here's the schematic of how Magnavox used to do it. posted by wpod on March 16, 2007 at 17:55:24:
Yup, the triodes in a 6EU7 and a 12AX7 are equivalent.Notice the piezoelectric phono cart. and tone control circuitry. The mu 100 triode was needed to deal with that. If a CDP is the source and tone controls are not used, mu 100 is too much.
BTW, the bad sound some people hear in an amp with loop NFB is at least partially due to slew limiting caused by a large HF error correction signal. A high gm triode is protection against slew limiting. The 'X7 triode is LOW gm. :~(
Eli D.
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Follow Ups
- Re: Here's the schematic of how Magnavox used to do it. - Eli Duttman 18:29:34 03/16/07 (1)
- Another option - Owen 06:46:37 03/19/07 (0)
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