In Reply to: Custom 6sn7 preamp runs too hot posted by Cuernavaca on May 12, 2017 at 10:36:09:
The shunt zeners in the power supply are dissipating heat and the heat is trapped inside the chassis. That is adding to the heat issues.
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Follow Ups
- Shunt zeners - Salectric 15:34:37 05/12/17 (0)