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8GJ7 Vacuum Tube New and Used

$3.50
8GJ7 Vacuum Tube New and Used
8GJ7 Vacuum Tube New and Used

Home / Shop

8GJ7 Vacuum Tube New and Used

$3.50
Model Number: 8GJ7NEW
Triode-pentode 8GJ7 noval vacuum tube with an 8.5V heater rating, available in new old stock (NOS) or tested used options for vintage television repair and oscillator/amplifier circuits.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 8GJ7 is a multi-unit glass vacuum tube featuring a medium-mu triode and a sharp-cutoff pentode housed in a single 9-pin miniature envelope. Designed primarily for television receiver circuitry—commonly used as a horizontal oscillator and reactance tube or multi-stage amplifier—it utilizes an 8.5-volt, 450mA heater designed for series-string tube filament configurations. Manufactured by companies such as RCA, Sylvania, GE, and Tung-Sol, this tube provides reliable dual-section performance for vintage television chassis restoration and specialized electronics repair.

  • Tube Type: Triode-Pentode (Medium-Mu Triode & Sharp-Cutoff Pentode)

  • Base Type: Miniature 9-Pin (Noval)

  • Envelope Style: Glass T-6.5

  • Filament Voltage: 8.5 V AC/DC

  • Filament Current: 0.45 A (450 mA)

  • Maximum Triode Plate Voltage: 250 V

  • Maximum Pentode Plate Voltage: 275 V

  • Primary Function: Horizontal oscillator, reactance tube, or voltage amplifier

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