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6BQ5 Vacuum Tube New and Used

$25.00
6BQ5 Vacuum Tube New and Used
6BQ5 Vacuum Tube New and Used

Home / Shop

6BQ5 Vacuum Tube New and Used

$25.00
Model Number: 6BQ5NEW
6BQ5 audio power pentode vacuum tube for hi-fi amplifiers, guitar amps, and radio output stages, featuring high power sensitivity, a 6.3V heater, and a 9-pin miniature base.
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  • Description
  • Specifications

The 6BQ5 is a popular 9-pin miniature audio power pentode developed for output stages in high-fidelity audio amplifiers, radio receivers, and musical instrument amplifiers. Introduced in Europe as the EL84, it features high power sensitivity and high efficiency, delivering rich, dynamic audio output in single-ended or push-pull configurations at moderate plate voltages. Operates on a 6.3V heater and fits standard 9-pin noval sockets. Available NOS and tested used.

  • Type: Power Pentode (Audio Power Output)

  • Base: 9-Pin Miniature Noval (EIA 9CV / B9A)

  • Heater Voltage: 6.3V

  • Heater Current: 0.76A

  • Max Plate Voltage: 300V

  • Max Screen Grid Voltage: 300V

  • Max Plate Dissipation: 12.0W

  • Transconductance: 11.3 mA/V (11,300 micromhos)

  • Audio Power Output: ~5.7W (Single-Ended Class A) / ~17W (Push-Pull Class AB)

  • Equivalents & Relatives: 6BQ5, EL84, 7189 (higher voltage variant), 7189A, 6BQ5/EL84, 8BQ5 (8.0V heater series-string version), 12BQ5 (12.6V heater version)