Tube-number record
117Z4GT
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BrandTUNG-SOL
ClassHalf-wave Rectifier
BaseOctal
Filament117 V @ 40 mA
Construction
Primary TypeRectifier
EnvelopeT-9 glass bulb
Base MaterialIntermediate shell 6-pin
Sections1
Filament / Heater
Heater NotesAC OR DC
Absolute Maximum Ratings
Plate Voltage117 V
H-C Voltage175 V
Audio Performance
Key Features
- Coated unipotential cathode
- Any mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condenser-Input Filter | 117 V | — | 30 | — | 90 mA |
Application Notes
The 117Z4GT is a half-wave rectifier designed for service in three-way portable receivers. If filter condensers larger than 40 uF are used, it may be necessary to use additional plate supply impedance.
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