Designed to be used in equipment having series heater string arrangement. MFR: Raytheon, RCA, Philco, Sylvania, GE SKU: 6BY8 New old stock * No longer available for export.
Designed with high transconductance and low plate capacitance allowing for efficient operation in IF and AF amplifiers. New old stock * No longer available for export. MFR: RCA, Sylvania, Amperex SKU: 6BA6-EF93