Designed for use in resistance coupled circuits as a voltage amplifier or phase inverter. Black base and band on glass. MFR: Tung-Sol SKU: 6SL7GT-GP-TS New old stock * No longer available for export.
Designed to operate as a rectifier tube in AC and AC-DC amplifier circuits. New old stock * No longer available for export. MFR: Tung Sol, Cunningham, Pro Comm SKU: 35Z3
Designed for use in the power supply of AC operated equipment. New old stock * No longer available for export. MFR: Tung-Sol, RCA, National Union SKU: 80-TUBULAR
