TKF3
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BrandTungsram
ClassPentode
BaseP8A
Construction
Primary TypePentode
EnvelopeDom-Kolben
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage135 V
Plate Dissipation0.7 W
Grid 2 Voltage135 V
Grid 1 Voltage-0.2 V
Cathode Current5 mA
Audio Performance
Key Features
- Hochfrequenz-Regelpenthode
- Batterieröhre
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 90V Operation | 90V | 500 | 2000000 | 1000 | 1mA |
| 135V Operation | 135V | 650 | 1300000 | 850 | 2mA |
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