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3GK5 Vacuum Tube New and Used

$5.50
3GK5 Vacuum Tube New and Used
3GK5 Vacuum Tube New and Used

Home / Shop

3GK5 Vacuum Tube New and Used

$5.50
Model Number: 3GK5NEW
3GK5 high-mu triode vacuum tube for radio receivers, featuring a 2.8V heater and 7-pin miniature base.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 3GK5 is a 7-pin miniature high-mu triode designed for RF amplifier service in radio tuners and high-frequency receiver front-ends. Featuring an internal frame-grid construction with protective shielding, it offers high mutual conductance (15,000 microsiemens) and low grid-to-plate capacitance. Designed with a 2.8V heater for 450mA series-filament radio circuits, it delivers high gain and low noise in weak-signal reception stages. Available in new old stock (NOS) and tested used conditions.

  • Type: High-Mu Guided-Grid Triode (RF Amplifier)

  • Base: 7-Pin Miniature (EIA 7FP layout)

  • Heater: 2.8V / 0.45A (Controlled warm-up)

  • Max Plate Voltage: 200V

  • Max Plate Dissipation: 2.5W

  • Amplification Factor (Mu): 78

  • Mutual Conductance: 15,000 microsiemens (15 mA/V)

  • Equivalents: 3GK5, 2GK5 (2.3V equivalent), 6GK5 (6.3V equivalent)