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Original Message
RE: Questions about 6BG6G amp build (schematic) Grommes 216BA
Posted by PakProtector on May 23, 2017 at 05:33:12:
For a given amount of FB, the longer the path the less stable. The RCA SP10 and 20 used a similar topology, and had no global loop.
Aside from the idea of building with 12AU7 because that is what is on the original, bean countered schematic...well, good luck wid that. Or, build, learn, and then decide how to apply what you learned for further improvement...LOL
cheers,
Douglas