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1AM4/1T4-SF

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BrandRETMA
ClassRF Remote Cutoff Pentode
BaseMiniature 7-pin (B7G)

Construction

Primary TypePentode
EnvelopeT-5 1/2
SectionsSingle

Filament / Heater

MaterialCoated

Absolute Maximum Ratings

Plate Voltage90 V
Grid 2 Voltage67.5 V
Cathode Current5.5 mA

Audio Performance

Key Features
  • Remote Cut-off
  • Internal Shield
  • Directly Heated Cathode

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier90V900500000-3.5mA

Application Notes

RF Remote Cutoff Pentode designed for portable receiver applications.

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