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6Q7 and 6Q7G Vacuum Tube New and Used

$7.00
6Q7 and 6Q7G Vacuum Tube New and Used
6Q7 and 6Q7G Vacuum Tube New and Used

Home / Shop

6Q7 and 6Q7G Vacuum Tube New and Used

$7.00
Model Number: 6Q7NEW
Duplex-diode high-mu triode 6Q7 and 6Q7G vacuum tubes with a 6.3V heater rating, available in new old stock (NOS) or tested used options for vintage radio repair and detector-amplifier circuits.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 6Q7 and 6Q7G are duplex-diode high-mu triode vacuum tubes designed for detector, AVC (automatic volume control), and first-stage audio 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 Philco, these tubes feature a 6.3V filament rating and an octal base design, offered in metal envelope (6Q7) or shoulder-style ST glass envelope (6Q7G) construction. Used for servicing vintage radio chassis, early audio equipment, and communications receivers requiring combined detection and audio voltage amplification.

  • Tube Type: Duplex-Diode High-Mu Triode

  • Base Type: Octal (8-pin) with Top Grid Cap

  • Envelope Style: Metal (6Q7) or ST-12 Shoulder Glass (6Q7G)

  • Filament Voltage: 6.3 V AC/DC

  • Filament Current: 0.3 A (300 mA)

  • Maximum Plate Voltage: 250 V

  • Amplification Factor: 70

  • Transconductance: 1,200 µmhos

  • Primary Function: Detector, AVC diode, and first audio stage voltage amplifier

  • Condition Options: New Old Stock (NOS) or Tested Used