KC 51
0 Tubes in archive
BrandPhilips Miniwatt
ClassTriode
Construction
Primary TypeTriode
EnvelopeSmall dimensions
Sections1
Filament / Heater
MaterialDirectly heated
Absolute Maximum Ratings
Plate Voltage100 V
Grid 1 Voltage0.3 V
Audio Performance
Key Features
- Directly heated battery tube
- Parallel filament supply
- Very small dimensions
- Compact design
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 20V | 350 | 18900 | 6.6 | 0.5mA |
| Condition 2 | 40V | 500 | 13600 | 6.9 | 1.25mA |
Application Notes
The KC 51 is a triode with very small dimensions for use in compact equipment such as e.g. deaf aid apparatus.
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