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In Reply to: RE: Questions about 6BG6G amp build (schematic) Grommes 216BA posted by Michael Samra on May 23, 2017 at 03:07:41
is only going to reduce stability margins. Any amount greater than Zero is going to make the amp *LESS* stable.
The balanced NFB applied to the driver cathodes does a lot less to wreck stability margins on a per dB applied than a global loop.
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"The balanced NFB applied to the driver cathodes does a lot less to wreck stability margins on a per dB applied than a global loop.....[because there are less reactive components in the loop path]."
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