SHARP CUT-OFF PENTODE VOLTAGE AMPLIFIER
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BrandTung-Sol
ClassPentode
BaseLock-in
Construction
Primary TypePentode
EnvelopeGlass T9
Base MaterialLock-in 8-pin
Sections1
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage110 V
Grid 2 Voltage110 V
Audio Performance
Key Features
- Lock-in construction
- Filamentary type
- Sharp cut-off
- Any mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 90V | 1150 | 500000 | - | 3.7mA |
| Class A1 Amplifier | 90V | 800 | 1000000 | - | 1.7mA |
Application Notes
Particularly adaptable to portable receivers as an RF or IF amplifier where automatic volume control is not required.
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