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6SZ7 Vacuum Tube New and Used

- Description
- Specifications
The 6SZ7 is a duplex-diode high-gain triode vacuum tube designed for detector, automatic volume control (AVC), and audio voltage amplifier applications in radio receivers. Units are available in both new old stock (NOS) and tested used conditions. Manufactured by companies including RCA, Sylvania, GE, and Raytheon, these tubes feature a 6.3V filament rating and an octal base design in a metal envelope. Used for servicing vintage radio chassis, broadcast receivers, and signal processing circuits requiring detector capability paired with voltage amplification.
Tube Type: Duplex-Diode High-Gain Triode
Base Type: Octal (8-pin metal envelope)
Envelope Style: Metal (6SZ7) or Glass T-9 (6SZ7GT)
Filament Voltage: 6.3 V AC/DC
Filament Current: 0.3 A (300 mA)
Maximum Plate Voltage: 250 V
Plate Dissipation: 1.0 W
Amplification Factor: 100
Transconductance: 1.1 mA/V
Primary Function: Detector, AVC diode, and high-gain audio voltage amplifier stage
Condition Options: New Old Stock (NOS) or Tested Used