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25B6 Vacuum Tube New and Used

$8.00
25B6 Vacuum Tube New and Used
25B6 Vacuum Tube New and Used

Home / Shop

25B6 Vacuum Tube New and Used

$8.00
Model Number: 25B6NEW
Type 25B6G / 25B6GT 8-pin octal beam power amplifier tube for AC/DC radio receiver circuits. Available in new and used condition.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 25B6 (available in ST-glass 25B6G and tubular-glass 25B6GT variants) is an 8-pin octal beam power amplifier designed for audio output stages in line-operated AC/DC radio receivers. Featuring high power sensitivity and high power output at low plate and screen voltages, its 25-volt, 0.3-ampere heater integrates directly into series-filament receiver strings.

  • Tube Function: Beam Power Amplifier

  • Base Design: 8-Pin Octal (7AC / K8A)

  • Glass Shape: ST-12 (25B6G) or T-9 (25B6GT)

  • Heater Voltage: 25.0 Volts AC / DC

  • Heater Current: 0.3 Amps (300 mA)

  • Maximum Plate Voltage: 117 Volts DC

  • Maximum Screen Grid Voltage: 117 Volts DC

  • Maximum Plate Dissipation: 6.5 Watts

  • Transconductance: 6,500 micromhos

  • Typical Power Output: 1.5 Watts (at 110V Plate/Screen)

  • Cathode Heating Method: Indirect (Unipotential)