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5CM8 Vacuum Tube New and Used

$4.25
5CM8 Vacuum Tube New and Used
5CM8 Vacuum Tube New and Used

Home / Shop

5CM8 Vacuum Tube New and Used

$4.25
Model Number: 5CM8NEW
5CM8 high-mu triode and sharp-cutoff pentode vacuum tube for radio and TV IF and video amplifier 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 5CM8 is a 9-pin miniature compound tube housing a high-mu triode and a sharp-cutoff pentode in a single envelope. Engineered for IF amplifier, video amplifier, AGC amplifier, and reactance tube service in television receivers and radio front-ends, it operates on a 4.7V/600mA controlled warm-up series heater. It was regularly specified in late-1950s series-string chassis produced by manufacturers like RCA Victor, Zenith, Philco, and Sylvania. Available in NOS and tested used conditions.

  • Type: High-Mu Triode / Sharp-Cutoff Pentode (IF Amplifier / Video Amplifier / AGC)

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

  • Heater Voltage: 4.7V

  • Heater Current: 0.6A

  • Max Plate Voltage (Triode / Pentode): 300V / 300V

  • Max Plate Dissipation (Triode / Pentode): 1.0W / 2.0W

  • Transconductance (Triode): 2,000 microsiemens (2.0 mA/V)

  • Transconductance (Pentode): 6,200 microsiemens (6.2 mA/V)

  • Equivalents: 5CM8, 6CM8 (6.3V equivalent)