Descrizione

Splendida valvola nos Amperex ECC82 12AU7 Halo O getter Bugle boy k61 R9F Test triode #1 = 2000 micromhos (90%) @ 11.2mA (106%) plate current emissions Triode #2 = 2100 micromhos (95%) @ 12.0mA (114%) plate current emissions