AUDIO VALVES: ECC31 6N7G NR73 CV1285 CV1956 TWIN TRIODE

The ECC31 is a twin triode audio output valve. Imbued with a powerful heater and a common cathode cage these hallmarks belies it’s true purpose as an audio power valve capable of 10W dissipation when operating push-pull.

Often confused for the legendary ECC32 small signal triode as it shares a similar envelope, the key is in it’s totally different pin out and the half screeded envelope.

ECC31