Amplifier Tube 811A, single item + matched pairs

Replacement tube(s) for power amplifiers like AL811HXCE and others. Available individually or as a 'matched set' (2, 3 or 4 pcs.).

Matched sets' are selected so that the operating parameters of the tubes (gain, heater current etc.) are approximately the same. This means that no major adjustment of the output stage is necessary and the output stage delivers a clean signal.