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35 Vacuum Tube New and Used

$7.00
35 Vacuum Tube New and Used
35 Vacuum Tube New and Used

Home / Shop

35 Vacuum Tube New and Used

$7.00
Model Number: 35NEW
Type 35 5-pin variable-mu screen-grid tetrode tube with top cap for vintage AC 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 35 (also designated 35/51 or UY-235) is a 5-pin grid-cap indirectly heated variable-mu screen-grid tetrode designed for RF and IF amplifier stages in early AC-operated broadcast receivers. Introduced jointly by RCA and Philco in 1931, it features a super-control (remote cut-off) grid layout specifically designed to eliminate cross-modulation and volume-control distortion when handling powerful local broadcast signals.

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

  • Base Design: 5-Pin Standard Base (UY5 / S5A) with Top Grid Cap

  • Glass Shape: ST-14, S-14, or Globe

  • Heater Voltage: 2.5 Volts AC / DC

  • Heater Current: 1.75 Amps

  • Maximum Plate Voltage: 275 Volts DC

  • Screen Grid Voltage (Grid 2): 90 Volts DC

  • Transconductance: 1,050 micromhos (at -3V Grid 1 Bias)

  • Plate Resistance: 350,000 Ohms

  • Cathode Heating Method: Indirect (Unipotential)