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5CG8 Vacuum Tube New and Used

$4.00
5CG8 Vacuum Tube New and Used
5CG8 Vacuum Tube New and Used

Home / Shop

5CG8 Vacuum Tube New and Used

$4.00
Model Number: 5CG8NEW
5CG8 medium-mu triode and sharp-cutoff pentode vacuum tube for radio and TV VHF oscillator-mixer stages, featuring a 4.7V heater and 9-pin miniature base.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 5CG8 is a 9-pin miniature compound tube containing a medium-mu triode and a sharp-cutoff pentode in a single envelope. Designed primarily for VHF oscillator-mixer and IF service in television receivers and multi-band radio front-ends, it operates on a 4.7V/600mA series heater with controlled warm-up time. It was regularly specified in late-1950s series-string chassis manufactured by RCA Victor, Zenith, Philco, and Sylvania. Available in NOS and tested used conditions.

  • Type: Medium-Mu Triode / Sharp-Cutoff Pentode (VHF Tuner / Oscillator-Mixer)

  • Base: 9-Pin Miniature Noval (EIA 9GF layout)

  • Heater Voltage: 4.7V

  • Heater Current: 0.6A

  • Max Plate Voltage (Triode / Pentode): 250V / 250V

  • Max Plate Dissipation (Triode / Pentode): 2.0W / 2.3W

  • Transconductance (Triode): 5,800 microsiemens (5.8 mA/V)

  • Transconductance (Pentode): 4,600 microsiemens (4.6 mA/V)

  • Equivalents: 5CG8, 6CG8 / 6CG8A (6.3V equivalent), 6X8 (similar electrical function)