7581A GE branded RCA used/good 1973 (EL)

56ma

Gm=5300

Good used mA range 55-70

Good used Gm range 5000-6000

Recommended for

– Ampeg VT22
– Fender Bassman 1969
– SunValley VP-3488SE
– Fender Vibrolux reverb 1971
– Fender Super Reverb 1970