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37 Vacuum Tube New and Used

$12.00
37 Vacuum Tube New and Used
37 Vacuum Tube New and Used

Home / Shop

37 Vacuum Tube New and Used

$12.00
Model Number: 37NEW
Type 37 5-pin general-purpose triode tube for vintage auto and battery 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 37 (originally designated UY-237 or CX-337) is a 5-pin indirectly heated general-purpose triode designed for detector, RF, and AF amplifier service in early 6.3-volt automobile and DC-operated receivers. Introduced by RCA and Cunningham in 1931 alongside the Type 36, it features a 6.3-volt heater optimized for direct operation from lead-acid storage batteries.

  • Tube Function: Indirectly Heated Triode (Detector / RF / AF Amplifier)

  • Base Design: 5-Pin Standard Base (UY5 / S5A)

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

  • Heater Voltage: 6.3 Volts AC / DC

  • Heater Current: 0.3 Amps (300 mA)

  • Maximum Plate Voltage: 250 Volts DC

  • Amplification Factor (Mu): 9.2

  • Plate Resistance: 10,200 Ohms

  • Transconductance: 900 micromhos

  • Cathode Heating Method: Indirect (Unipotential)