Tube-number record
CK1049
0 archive entries
CK1049 is a tube type in the TubeDatabase archive (class: Radiation Counter Tube). Recorded specifications: brand Raytheon, year 1955, construction Other / special, base None, socket Special / none, and maximum plate voltage 800 V. The archive does not yet hold a photographed example of this type.
BrandRaytheon
ClassRadiation Counter Tube
BaseSpecial / none
Construction
Primary TypeOther / special
EnvelopeT-5 Glass, thin wall section approximately 3" long (35 mg/cm^2)
Base MaterialNone
Filament / Heater
Absolute Maximum Ratings
Plate Voltage800 V
Audio Performance
Key Features
- Low-cost glass thin wall
- Halogen-quenched
- Relatively unlimited life
- Not damaged by accidental over voltages
- Increased pulse height
- Wider temperature range
- Non-photosensitive
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radiation Detection (Beta/Gamma) | 900 V | — | — | — | — |
Application Notes
The CK1049 is designed for use in inexpensive prospectors units and demonstration units. The cathode is an externally applied film of colloidal graphite. Connection may be made by spring clamp or wire strap. Avoid placing clamps around the 3-inch thin wall section in the center of the bulb.
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