In Reply to: Directly or indirectly heated driver tubes? posted by iodemus on June 21, 2020 at 21:22:38:
I have 10s driving 304tl The only limitation is keeping the noise down from stage to stage. They sound great if you can make them quiet enough. One limitation is that most directly heated tubes have lower mu so they will be a challenge to swing 70v pp to an output tube without many stages.
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Follow Ups
- RE: Directly or indirectly heated driver tubes? - Chip647 11:50:15 06/22/20 (0)