Designed to function in both AC and DC powered receivers. MFR: Raytheon, Zytron, Philco, Hytron SKU: 7B4 New old stock * No longer available for export.
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 to function as a UHF oscillator in a TV amplifier MFR: Raytheon, GE, Sylvania, Tung-Sol SKU: 6T4 New old stock * No longer available for export.
Designed to perform the combined functions of the mixer and oscillator in superheterodyne receivers, especially those of the all-wave type. MFR: Raytheon SKU: 6SA7WGT New old stock * No longer available for export.
Designed to be used in electronic computer applications and other On/Off applications. New old stock * No longer available for export. MFR: 6829 SKU: 12AV7
Designed to operate as a vertical deflection amplifier in TV receivers or as an audio frequency power output tube. New old stock * No longer available for export. MFR: Raytheon, General Electric SKU: 6W6GT
