6L6G RCA KT66E TETRODE
On offer is a particularly nice 6L6G by RCA also labelled as a KT66E.
The story gets better for we have tested it using our AVO VCM 163
Against the nominal AVO specification for 100% emission of :-
Ia =54mA; gm = 5.2 mA/V @ Va = 250V; Vg = -15V
Obtained results were:-
Device 1: Ia = 50 mA; gm = 4.9 mA/V
As you can see, these values meet the nominal specification for a new device.