6F6G RCA NOS 1940”s

37.5ma

Gm=2600

tested on Amplitrex

Recommended for

– Sparton Nocturne 1186 from 1936
– Fire Stone Sir Chef S-7404-3 1939
– Montgomery-Ward Airline Model 62-226
– Supratek Cortese
– Victoria
– WE 106 preamp clone

– Wards Airline Radio