(!!) (Recommended Pair) 6LF6 JAPAN Big Bottle Euro style construction NOS 1970”s (92ma and 87ma)

1 pair) 6LF6 JAPAN Big Bottle Euro style construction NOS 1970”s same build

1 tube) 92ma and Gm=13,100 branded RCA

1 tube) 87ma and Gm=12,500 branded Westinghouse

(6LF6=6.3V @ 2A Filament, Vplate=990Vmax, Vplate=8000Vpeak-pulse, 40 watts)
(20LF6=6LF6 with 20V Filament)

– Futterman OTL
– Counterpoint SA4 OTL