Designed to be used as mixers at frequencies as high as 600 megacycles. MFR: RCA, GE , Sylvania, Amperex, Tung-Sol SKU:6J6 New old stock * No longer available for export.
Designed for use as a combined detector, amplifier, and automatic-volume-control tube in radio receivers. Manufactures RCA, Tung-Sol, GE, Raytheon, Sylvania,Philco, Westinghouse SKU: 6SQ7 New old stock * No longer available for export.
Designed for service as a detector diode, AVC rectifier, and a high gain resistance coupled amplifier. New old stock * No longer available for export. MFR: Raytheon, National Union SKU: 12Q7GT