Tube-number record
5FG7
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BrandTUNG-SOL
ClassTRIODE - PENTODE
BaseNoval (B9A)
Filament4.7 V @ 600 mA
Construction
Primary TypeMulti-section
EnvelopeT-6 1/2
Sections2
Filament / Heater
Heater NotesHeater warmup time: 11 seconds
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation3 W
Grid 2 Voltage330 V
H-C Voltage200 V
Audio Performance
Key Features
- Miniature Type
- Triode Oscillator
- Pentode Mixer
- VHF TV Receivers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Unit - Class A1 Amplifier | 125 V | 7500 | 5700 | 43 | 13 mA |
| Pentode Unit - Class A1 Amplifier (Set 1) | 100 V | 7400 | — | — | 12 mA |
| Pentode Unit - Class A1 Amplifier (Set 2) | 125 V | 6000 | 180000 | — |
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