Tube-number record
CK7576
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BrandRaytheon
ClassSubminiature Triode
BaseSubminiature
Filament6.3 V @ 450 mA
Construction
Primary TypeTriode
EnvelopeT-3 Glass
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater NotesHeater-cathode type
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation4.1 W
Grid 1 Voltage-55 V
Cathode Current50 mA
H-C Voltage90 V
Audio Performance
Key Features
- High-Mu triode
- Grounded grid RF power amplifier
- Subminiature construction
- High transconductance
- Flexible terminal leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 200 V | 10700 | — | 46 | 15.5 mA |
| 235 Mc Grounded Grid RF Amplifier | 200 V | — | — | — | 37 mA |
Application Notes
The CK7576 is designed for grounded grid RF power amplifier service in the VHF and UHF regions. Flexible terminal leads may be soldered directly to components. Series tuning of the input circuit is recommended due to heater-to-cathode capacitance.
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