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32 Vacuum Tube New and Used

$8.00
32 Vacuum Tube New and Used
32 Vacuum Tube New and Used

Home / Shop

32 Vacuum Tube New and Used

$8.00
Model Number: 32NEW
Type 32 4-pin screen-grid tetrode tube with top cap for vintage battery-operated 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 Type 32 (originally designated UX-232 or CX-332) is a 4-pin grid-cap directly heated screen-grid tetrode designed for RF and IF amplifier service in battery-operated broadcast receivers. Introduced by RCA and Cunningham in 1930, it features a low-draw 2.0-volt filament and high power sensitivity, allowing multi-stage high-frequency amplification with minimal filament battery consumption.

  • Tube Function: Screen-Grid Tetrode (RF / IF Amplifier)

  • Base Design: 4-Pin Standard Base (UX4 / Bayonet) with Top Grid Cap

  • Glass Shape: ST-12 or Globe (S-12)

  • Filament Voltage: 2.0 Volts DC

  • Filament Current: 0.06 Amps (60 mA)

  • Maximum Plate Voltage: 180 Volts DC

  • Screen Grid Voltage (Grid 2): 67.5 Volts DC

  • Amplification Factor (Mu): 580

  • Transconductance: 650 micromhos

  • Cathode Heating Method: Direct (Filament)