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6S4A Vacuum Tube New and Used

- Description
- Specifications
The 6S4A is a medium-mu power triode vacuum tube designed for vertical deflection amplifier circuits in television receivers and high-voltage driver stages in audio equipment. Units are available in both new old stock (NOS) and tested used conditions. Manufactured by companies including RCA, Sylvania, GE, and Tung-Sol, these tubes feature a 6.3V filament rating and a 9-pin miniature noval base design. Used for servicing vintage television chassis, communications receivers, and custom audio driver stages requiring high plate dissipation.
Tube Type: Medium-Mu Power Triode
Base Type: Noval (9-pin miniature)
Envelope Style: Glass T-6 1/2
Filament Voltage: 6.3 V AC/DC
Filament Current: 0.6 A (600 mA)
Maximum Plate Voltage: 500 V
Plate Dissipation: 8.5 W
Amplification Factor: 16.5
Transconductance: 4,500 µmhos
Primary Function: Vertical deflection amplifier or high-voltage audio driver stage
Condition Options: New Old Stock (NOS) or Tested Used