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43 Vacuum Tube New and Used

$4.50
43 Vacuum Tube New and Used
43 Vacuum Tube New and Used

Home / Shop

43 Vacuum Tube New and Used

$4.50
Model Number: 43NEW
Type 43 power output pentode vacuum tube for AC/DC vintage radio receivers, featuring a 25V heater and 6-pin base.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The Type 43 is a 6-pin power output pentode designed for audio amplifier stages in AC/DC line-powered radio receivers. Featuring a 25V heater designed for series-filament strings, it provides audio output power at low plate and screen voltages, making it ideal for transformerless receiver power supplies. Available in new old stock (NOS) and tested used conditions.

  • Type: Power Output Pentode (Audio Amplifier)

  • Base: 6-Pin UY Base (EIA 6B layout)

  • Bulb Style: ST-14 Shouldered Glass

  • Heater Voltage: 25V

  • Heater Current: 0.3A

  • Max Plate Voltage: 160V

  • Max Screen Grid Voltage: 135V

  • Max Plate Dissipation: 6.0W

  • Power Output: 2.0W

  • Mutual Conductance: 2,300 microsiemens (2.3 mA/V)

  • Equivalents: Type 43, 25A6 (Octal equivalent), 25A6G