Designed for use in television or other high-frequency amplifiers where the low impedance circuits required result in low gain which may be partially compensated for by use of a high transconductance tube. MFR: Raytheon SKU: 7G7 New old stock * No longer available for export.
Designed to function as a gated amplifier in a color TV receiver. In such service it acts as a sync separator or sync clipper. MFR: Sylvania SKU: 12CS6 New old stock * No longer available for export.
Designed for use as a detector and intermediate-frequency or audio-frequency amplifier. MFR: RCA SKU: 12SF7 New old stock * No longer available for export.
Designed for use as a combined detector, audio amplifier and automatic volume control tube. MFR: RCA, Sylvania SKU: 12SR7 New old stock * No longer available for export.
Designed to operate as a diode detector, avc rectifier and as a audio amplifier in AC, AC-DC, and DC circuits. MFR: RCA, GE SKU: 12SW7 New old stock * No longer available for export.