Tube-number record
CK6281
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BrandRaytheon
ClassSubminiature Pentode
BaseFlexible / flying leads
Construction
Primary TypePentode
EnvelopeT-2X3 Glass
Base MaterialGlass
SectionsSingle
Filament / Heater
MaterialFilament type
Absolute Maximum Ratings
Plate Voltage25 V
Grid 2 Voltage25 V
Cathode Current0.1 mA
Audio Performance
Key Features
- Low battery drain
- Long life
- Small size
- Low microphonic level
- Metallic shield coated bulb
- Flexible terminal leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode | 15 V | 105 | 2000000 | — | 0.05 mA |
Application Notes
Designed primarily for use in resistance coupled audio frequency and direct coupled amplifiers. Features low battery drain and low microphonics.
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