4069-A
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BrandStandard Valves
ClassPentode
BaseAmerican Giant 5-pin
Construction
Primary Typepentode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation100 W
Grid 2 Voltage400 V
Audio Performance
Key Features
- Thoriated tungsten filament
- Constant voltage type
- American Giant 5-pin base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Constants (Gm Measurement) | 2000V | 4500 | - | - | - |
| Class B Telephony | 2000V | - | - | - | 75mA |
| Class C Telephony - Control grid modulated | 2000V | - | - | - | 85mA |
| Class C Telegraphy | 2000V | - | - | - | 120mA |
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