DETECTOR AMPLIFIER PENTODE
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BrandRCA
ClassPentode
BaseSmall Radial 5-Pin
Construction
Primary TypePentode
EnvelopeT4.5
SectionsSingle
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage145 V
Grid 2 Voltage67.5 V
Audio Performance
Key Features
- Acorn Type
- Ultra-high-frequency use
- Coated Filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 135V | 500 | 800000 | - | 1.7mA |
Application Notes
R-f grounding by means of condensers placed close to the tube terminals is required if the full capabilities of the 959 for ultra-high-frequency uses are to be obtained. Separate r-f grounding returns should be made to a common point in the plate and control-grid circuits to avoid r-f interaction.
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