2 layers190.1 × 71.6 mm

OSDEHA AMP
mbrennwa/OSDEHA
Amplifier for electrostatic headphones using directly heated triodes in the output stage
85 parts2CERN-OHL-S-2.0
Boards in 1 GitHub repository, designed in KiCad, that use the ZY15 by DIOTEC (-50℃~+150℃ 1 Independent 13.8V~15.6V 15V 1uA@10V 2W ±5% DO-41 Zener Diodes ROHS). See how each wires it, with its parts, size, README and files; the ZY15’s symbol, footprint and pinout are on its own page.

mbrennwa/OSDEHA
Amplifier for electrostatic headphones using directly heated triodes in the output stage