4-125A Beam Power Tetrode
Classic beam power tetrode with 125 W plate dissipation, widely used in HF and VHF exciters and l…
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4CX250R — 4CX250R Glass-Metal Tetrode
Manufacturer: Eimac / CPI
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Product Description
Glass-metal beam tetrode with 250 W plate dissipation, functionally equivalent to the 4CX250B with glass/metal envelope.
Technical Specifications
| Tube Type | Beam Tetrode |
|---|---|
| Plate Dissipation | 250 W |
| Max Plate Voltage | 3.5 kV |
| Max Plate Current | 175 mA |
| Screen Voltage | 300 V |
| Transconductance | 25 mA/V |
| Max Frequency | 110 MHz |
| Filament Voltage | 6.0 V |
| Filament Current | 2.5 A |
| Envelope | Glass-metal |
Applications
- HF linear amplifiers
- SSB transmitters
- Scientific RF systems
- Amateur radio
Key Features
- Glass-metal envelope
- Equivalent electrical parameters to 4CX250B
- Cost-effective alternative
- Long service life