8527
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BrandToshiba
ClassMedium-mu Triode
Base8-pin subminiature
Filament6.3V @ 150mA
Construction
Primary Typetriode
EnvelopeMetal shell
Base MaterialCeramic
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation3.3 W
Grid 1 Voltage-55 V
Cathode Current22 mA
H-C Voltage200 V
Audio Performance
Key Features
- Micro metal miniature construction
- Ceramic stem
- Industrial and military airborne equipment usage
- Severe shock and vibration resistant
- High frequency up to 500 Mc/s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 amplifier | 100V | 5800 | 4650 | 27 | 8.5mA |
| Class A1 amplifier | 150V | 6500 | 4150 | 27 | 13mA |
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