Designed to be utilized as a grounded Cathode, neutralized RF amplifier tube in tuners of VHF TV and FM receivers MFR: RCA SKU:6DS4 New old stock * No longer available for export.
Designed to be used in relay and grid-controlled rectifier applications. New old stock * New In Box * No longer available for export. MFR: RCA, Westinghouse, Sylvania, GE, Tung Sol, National SKU: 2D21
Designed for service as a cw oscillator, frequency multiplier or grounded grid amplifier. New old stock * No longer available for export. MFR: RCA SKU: 5675
Designed to function in a variety of detector applications at UHF and low frequencies. New old stock * No longer available for export. MFR: Sylvania, RCA, Heinz and Kaufman(Made in Germany), General Electric SKU: 5896
Designed to function as an intermediate frequency or RF amplifier. New old stock * New In Box * No longer available for export. MFR: RCA, Raytheon, CBS, Sylvania SKU: 6186/6AG5WA