RF Power Grid Tubes · Tetrodes
4CX10000D Ceramic Tetrode
Available on request
Eimac / CPI
4CX10000D
Very high-power ceramic tetrode with 10 kW plate dissipation for high-power AM broadcast, TV transmitters, and industrial RF heating.
- Plate Dissipation
- 10000 W
- Max Frequency
- 110 MHz
- Max Plate Voltage
- 10 kV
- Max Plate Current
- 3.5 A
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
4CX10000D
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About the 4CX10000D
The 4CX10000D is a power tetrode manufactured by Eimac / CPI. Very high-power ceramic tetrode with 10 kW plate dissipation for high-power AM broadcast, TV transmitters, and industrial RF heating.
Key ratings of the 4CX10000D include tube type Beam Tetrode, plate dissipation 10000 W, max plate voltage 10 kV, max plate current 3.5 A, screen voltage 750 V and transconductance 120 mA/V.
Typical applications are high-power AM broadcast, UHF/VHF TV transmitters, ISM industrial RF heating and military HF communications. Notable features: 10 kW plate dissipation, very high transconductance, water-cooling option and top-tier broadcast performance.
Power tetrodes add a screen grid to the triode structure, giving higher gain and lower drive power. They are widely used in FM and TV broadcast transmitters, HF communications, plasma heating and accelerator RF systems, usually together with vacuum capacitors in the output network.
PartnerTubes supplies the 4CX10000D worldwide from Groningen, the Netherlands — availability, lead time and price are confirmed per enquiry. Our team can help with equivalent and cross-reference types, sockets and accessories, and supply programmes for OEM and maintenance customers. Interchangeability must always be confirmed for the specific equipment.
Technical specifications
| Tube Type | Beam Tetrode |
|---|---|
| Plate Dissipation | 10000 W |
| Max Plate Voltage | 10 kV |
| Max Plate Current | 3.5 A |
| Screen Voltage | 750 V |
| Transconductance | 120 mA/V |
| Max Frequency | 110 MHz |
| Filament Voltage | 7.5 V |
| Filament Current | 21 A |
| Cooling | Forced air or water |
Specifications are indicative and based on published manufacturer data. Always verify against the official datasheet and confirm suitability for your application before ordering.
Applications & features
Used in
- High-power AM broadcast
- UHF/VHF TV transmitters
- ISM industrial RF heating
- Military HF communications
Key features
- 10 kW plate dissipation
- Very high transconductance
- Water-cooling option
- Top-tier broadcast performance
Related parts & equivalents
Recommended alongside or as alternatives to the 4CX10000D.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for output networks
Often ordered with the 4CX10000D for the same system.
Jennings UCSL 25–200 pF Variable Vacuum Capacitor 25 kV
Jennings Technology (CPI)
Capacitance Range 25–200 pF
Jennings UCSL 15–100 pF Variable Vacuum Capacitor 20 kV
Jennings Technology (CPI)
Capacitance Range 15–100 pF
Jennings UCSL 10–60 pF Variable Vacuum Capacitor
Jennings Technology (CPI)
Capacitance Range 10–60 pF
Frequently asked questions
What is the 4CX10000D?
The 4CX10000D is a power tetrode manufactured by Eimac / CPI. Very high-power ceramic tetrode with 10 kW plate dissipation for high-power AM broadcast, TV transmitters, and industrial RF heating.
What are the specifications of the 4CX10000D?
Tube Type: Beam Tetrode; Plate Dissipation: 10000 W; Max Plate Voltage: 10 kV; Max Plate Current: 3.5 A; Screen Voltage: 750 V; Transconductance: 120 mA/V; Max Frequency: 110 MHz; Filament Voltage: 7.5 V; Filament Current: 21 A; Cooling: Forced air or water.
What is the 4CX10000D used for?
The 4CX10000D is used in high-power AM broadcast, UHF/VHF TV transmitters, ISM industrial RF heating and military HF communications.
What are alternatives or related parts to the 4CX10000D?
Related and comparable parts include 4CX5000A, 4CX15000A, 3CX10000H3, 4CX3000A, 4CX1000A and 4CX20000A. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the 4CX10000D?
The 4CX10000D is available from PartnerTubes (Grunius BV, Groningen, Netherlands) with worldwide shipping. Availability and lead time are confirmed on request. Request a quote at https://www.partnertubes.com/contact/?part=4CX10000D or email info@partnertubes.com.