3GK5

Vacuum Tube Type: 3GK5, Filament / Heater: 3.15V at 360mA, Pin Count / Base: 7-Pin Miniature (Button / B7G), Description: Controlled surge series filament frame-grid high-mu triode acting as an entry RF signal amplifier for television VHF channel selectors. Equivalent: GE 3GK5 / Sylvania 3GK5 / Amperex 3GK5 / RCA 3GK5