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50L6GT Vacuum Tube New and Used

$4.50
50L6GT Vacuum Tube New and Used
50L6GT Vacuum Tube New and Used

Home / Shop

50L6GT Vacuum Tube New and Used

$4.50
Model Number: 50L6GT-NEW
50L6GT beam power amplifier tube with 50.0V heater and 8-pin octal base.
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Categories: Vacuum Tubes and Accessories
Manufacturer: Multiple Manufacturers
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  • Description
  • Specifications

The 50L6GT is an 8-pin octal beam power amplifier vacuum tube introduced in the late 1930s for the audio output stage of transformerless (AC/DC) superheterodyne radio receivers. Designed specifically for 150mA series-heater string circuits, it operates on a 50.0V heater rating. It delivers high power output and sensitivity from low B+ plate voltages, making it a staple audio output tube in post-war "All-American Five" (AA5) radio designs. Featuring a T-9 glass envelope, the 50L6GT serves as the 50V heater equivalent to the 25L6GT and 6V6GT family. Available NOS and tested used.

  • Type: Beam Power Amplifier (Audio Output)

  • Base: 8-Pin Octal (EIA 7AC layout)

  • Heater Voltage: 50.0V

  • Heater Current: 0.15A (150mA)

  • Max Plate Voltage: 200V

  • Max Screen Grid Voltage (Grid 2): 125V

  • Max Plate Dissipation: 10.0W

  • Max Screen Grid Dissipation: 1.25W

  • Power Output: 4.3W (at 200V plate) / 2.1W (at 110V plate)

  • Transconductance: 9500 micromhos (9.5 mA/V)

  • Equivalents & Relatives: 50L6, 50L6G, 125L6GT, 50C5 (7-pin miniature equivalent), 50B5 (7-pin miniature relative), 25L6GT (25V heater version), 6V6GT (6.3V heater relative)