A modern take on the legendary 300B SET amplifier.
Sweep tube Spud using the 6GF7A, 6KY8, or 6LR8 tubes.
21st Century Maida Regulator Rev. 2.1
High voltage regulator with over 100 dB line rejection.
Universal Filament Regulator
Low-noise, precision DC power source for vacuum tube filaments and heaters.