Tube-number record
CK7083
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CK7083 is a tube type in the TubeDatabase archive (class: Sharp-cutoff Pentode). Recorded specifications: brand Raytheon, construction Pentode, base Glass, socket Subminiature, maximum plate voltage 200 V, and maximum plate dissipation 1.85 W. The archive does not yet hold a photographed example of this type.
BrandRaytheon
ClassSharp-cutoff Pentode
BaseSubminiature
Filament6.3 V @ 200 mA
Construction
Primary TypePentode
EnvelopeT-3 Glass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesHeater-cathode type, fast warm-up
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation1.85 W
Grid 2 Voltage155 V
Cathode Current20 mA
H-C Voltage200 V
Audio Performance
Key Features
- Reliable subminiature construction
- VHF region operation
- Fast warm-up time
- Stable performance
- Severe temperature and vibration resistant
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode connection | 120 V | 5000 | 340000 | — | 7.5 mA |
Application Notes
A separate terminal connection is provided for Grid #3, which under self-bias conditions can be connected directly to ground, permitting the cathode by-pass capacitor to be omitted for lower grid loading. Flexible terminal leads may be soldered or welded directly.
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