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32A8

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ClassHigh-Mu Triode, Power Pentode
BaseNoval 9-Pin
Filament32V @ 150mA

Construction

Primary TypeTriode-Pentode
EnvelopeGlass
Sections2

Filament / Heater

Heater NotesDesigned for transformer-less radio receivers

Absolute Maximum Ratings

Plate Voltage250 V
Plate Dissipation7 W
Grid 2 Voltage250 V
Cathode Current50 mA
H-C Voltage200 V

Audio Performance

Typical THD10%
Power Output1.05 W
Key Features
  • Transformer-less radio receivers
  • AF amplifier
  • Output tube
  • Noval 9-Pin base

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode Unit100V2900-703.5mA
Pentode Unit100V680015000-26mA

Application Notes

The D.C. component of heater-cathode voltage must not exceed 100 volts when heater is positive with respect to cathode.

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