7F8 100 TESTED GOOD VACUUM TUBE TESTS STRONG | EBG
SM5CBW - Tubedata
7F8 High Frequency Twin Triode Tube. Designed for use as a grounded grid radio frequency amplifier or as a frequency converter at frequencies up to 300 mc. MFR: GE, RCA, Tung Sol.
Sylvania ONE (1) JAN-CHS-7F8W Double Triode (like 12AT7) Loktal tNOS TESTED Vacuum Tube Audio 1945-1 | Reverb France