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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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In Reply to: RE: the 12AU7 as a design has poor distortion performance. posted by Triode_Kingdom on July 9, 2015 at 07:37:38:
In something like the Heath W5M, 'U7 non-linearity may well be of little consequence. Still, less open loop distortion has to be better. FWIW, focus on the HF error correction signal, which (if substantial) can induce slew limiting.
BTW, I calculate that the W5M has 800 mA. of spare heater current. Pull those damned 12AU7s and install pin compatible 12BH7s. Of course, minor Noval socket wiring changes allow use of the 6CG7/6FQ7 and the 6GU7.
Eli D.
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Follow Ups
- RE: the 12AU7 as a design has poor distortion performance. - Eli Duttman 10:22:10 07/09/15 (1)
- RE: the 12AU7 as a design has poor distortion performance. - Triode_Kingdom 21:37:22 07/11/15 (0)
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