8529
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BrandToshiba
ClassSemi-remote-cutoff Pentode
Base8-pin subminiature
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeMetal shell
Base MaterialCeramic
Filament / Heater
Heater NotesCoated unipotential cathode
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation0.85 W
Grid 2 Voltage155 V
Grid 1 Voltage-55 V
Cathode Current16.5 mA
H-C Voltage200 V
Audio Performance
Key Features
- Micro metal miniature construction
- Metal shell
- Ceramic stem
- Designed for severe shock and vibration
- Suitable for industrial and military airborne equipment
- On-off control capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 amplifier | 100V | 4500 | 260000 | - | 7.2mA |
Application Notes
Designed for use in wide-band high-frequency amplifiers and AGC amplifiers. Maintains capabilities after long periods of operation under cutoff conditions.
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