Tube-number record
CK6612
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BrandRAYTHEON
ClassSUBMINIATURE PENTODE
BaseFlexible / flying leads
Construction
Primary TypePentode
EnvelopeT-2X3 Glass
Base MaterialGlass
SectionsSingle
Filament / Heater
MaterialTinned flexible leads
Absolute Maximum Ratings
Plate Voltage50 V
Plate Dissipation0.2 W
Grid 2 Voltage50 V
Cathode Current5.5 mA
Audio Performance
Key Features
- Filament type
- Fully shielded
- Subminiature
- Flexible terminal leads
- Economy of battery drain
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier (Operation 1) | 30 V | 3000 | 180000 | — | 3 mA |
| Class A1 Amplifier (Operation 2) | 45 V | 3000 | 180000 | — | 3 mA |
Application Notes
The CK6612 is designed for use in RF applications requiring economy of space, weight, and battery drain. The bulb is entirely coated with a metallic shield connected to lead 3. Grid 3 is composed of two separate deflector plates, one connected to lead 3 and the other to lead 5.
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