Tube-number record
117P7GT
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BrandTUNG-SOL
ClassBeam Power Amplifier and Half Wave Rectifier
BaseOctal
Filament117 V @ 90 mA
Construction
Primary TypeRectifier
EnvelopeT-9
Sections2
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage117 V
Plate Dissipation6 W
Grid 2 Voltage117 V
H-C Voltage175 V
Audio Performance
Typical THD5%
Power Output0.85 W
Key Features
- Uni-potential cathodes
- Combined Rectifier and Power Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Beam Power Amplifier Unit - Class A1 | 105 V | 5300 | 17000 | — | 43 mA |
| Half Wave Rectifier | 117 V | — | — | — | 75 mA |
Application Notes
Designed for AC-DC service from a 117 volt line in three way portable receivers.
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