Designed for use in the power supply of AC operated equipment. New old stock * No longer available for export. MFR: Tung-Sol, RCA, National Union SKU: 80-TUBULAR
Designed for use as a radio frequency or intermediate frequency amplifier in AC or battery operated equipment. MFR: CBS, RCA, Ken Rad, Sylvania SKU: 78 New old stock * No longer available for export.
Designed primarily for grounded grid operation in the input stage of broad band amplifiers. New old stock * New In Box * No longer available for export. MFR: Raytheon, RCA SKU: 58-Remote
Designed to operate in the out put stages of audio amplifiers designed to operate from transformerless AC or AC/DC power supplies. New old stock * New in Box * No longer available for export. MFR: Dumont, Tung-Sol SKU: 60FX5
