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In Reply to: Follow-up on new build ST-70 with the 6NS7 tube posted by JoshT on April 1, 2023 at 09:14:38:
"in what applications does the 12AU7 most impact performance and least impact performance?"
Most Impact: When used as a standard gain stage in a circuit with no local or global feedback.
Least Impact: When used in a topology with inherent negative feedback, such as a cathode follower (best), cathodyne phase splitter or long tail pair.
It's a poor choice as a gain stage in a preamp with no feedback.
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Follow Ups
- RE: Follow-up on new build ST-70 with the 6NS7 tube - Triode_Kingdom 18:16:42 04/01/23 (0)