2FQ5
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BrandTUNG-SOL
ClassTRIODE
Base7-pin miniature
Filament2.3V @ 0.6mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesHeater warm-up time 11.0 seconds
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation2.5 W
Grid 1 Voltage-50 V
Cathode Current22 mA
H-C Voltage100 V
Audio Performance
Key Features
- Semi-remote cutoff
- VHF Amplifier
- RF Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 135V | 11000 | 5500 | 60 | 11.5mA |
Application Notes
The 2FQ5 is designed for use as a VHF and RF amplifier at a B+ of 135 volts.
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