Designed to be used as a biased detector, radio frequency oscillator, and mixer tube. MFR: CBS, Raytheon, Sylvania SKU: 12SJ7 New old stock * No longer available for export.
Designed for use in AVC in RF and IF amplifiers and they minimize cross modulation. MFR: Philco, Sylvania, RCA SKU: 12SK7 New old stock * No longer available for export.
Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter. MFR: GE, Philco, Sylvania, RCA SKU: 12SL7GT New old stock * No longer available for export.
Designed to function as a resistance coupled amplifier or combined vertical oscillator and vertical deflection amplifier in TV receivers MFR: Philco, GE, RCA, Sylvania, Westinghouse, Raytheon, international Servicemaster SKU: 12SN7GTA New old stock * No longer available for export.
Designed to operate in the output stages of AC or DC receivers. New old stock * No longer available for export. MFR: RCA, GE, Zaltron, Sylvania SKU: 12V6GT