220 H.P.T.
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BrandCOSSOR
ClassPentode
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Grid 2 Voltage150 V
Audio Performance
Key Features
- 2-Volt Economy Pentode
- High sensitivity
- High efficiency
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Power Output | 150V | 2500 | - | - | 8mA |
Application Notes
Particularly suitable for use when the input is small. By a suitable adjustment of screen and grid bias voltages, this valve may be adjusted to work with very small anode current down to 4 mA.
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