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7B7

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BrandSylvania
ClassVariable-mu pentode
BaseLoktal
Filament7V @ 160mA

Construction

Primary TypePentode
EnvelopeT9-G
Base MaterialMetal
SectionsSingle

Filament / Heater

Heater NotesNominal 7.0V for 130V line service, 6.3V standard operation

Absolute Maximum Ratings

Plate Voltage250 V
Grid 2 Voltage100 V
Grid 1 Voltage-3 V

Audio Performance

Key Features
  • Loktal base
  • Variable-mu (pente variable)
  • Single-ended (no grid cap)

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
RF/IF Amplifier250V170070000012008.5mA

Application Notes

Sylvania type 7B7 is a triple-grid remote cut-off amplifier suitable for HF or MF service in AC, universal, or automotive receivers.

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