RF Power Grid Tubes · Tetrodes
4CX15000A Ceramic Tetrode
Available on request
Eimac / CPI
4CX15000A
Very large ceramic tetrode with 15 kW plate dissipation for high-power shortwave broadcast and international HF transmitter systems.
- Plate Dissipation
- 15000 W
- Max Frequency
- 100 MHz
- Max Plate Voltage
- 12 kV
- Max Plate Current
- 4.5 A
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
4CX15000A
Request quote
About the 4CX15000A
The 4CX15000A is a power tetrode manufactured by Eimac / CPI. Very large ceramic tetrode with 15 kW plate dissipation for high-power shortwave broadcast and international HF transmitter systems.
Key ratings of the 4CX15000A include tube type Beam Tetrode, plate dissipation 15000 W, max plate voltage 12 kV, max plate current 4.5 A, screen voltage 850 V and max frequency 100 MHz.
Typical applications are high-power shortwave broadcast, international HF transmitters, long-range military communications and MW transmitters up to 500 kW. Notable features: 15 kW plate dissipation, water-cooled operation, designed for continuous broadcast duty and industry-standard shortwave tube.
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 4CX15000A 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 | 15000 W |
| Max Plate Voltage | 12 kV |
| Max Plate Current | 4.5 A |
| Screen Voltage | 850 V |
| Max Frequency | 100 MHz |
| Filament Voltage | 7.5 V |
| Filament Current | 28 A |
| Cooling | 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 shortwave broadcast
- International HF transmitters
- Long-range military communications
- MW transmitters up to 500 kW
Key features
- 15 kW plate dissipation
- Water-cooled operation
- Designed for continuous broadcast duty
- Industry-standard shortwave tube
Related parts & equivalents
Recommended alongside or as alternatives to the 4CX15000A.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for output networks
Often ordered with the 4CX15000A 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 4CX15000A?
The 4CX15000A is a power tetrode manufactured by Eimac / CPI. Very large ceramic tetrode with 15 kW plate dissipation for high-power shortwave broadcast and international HF transmitter systems.
What are the specifications of the 4CX15000A?
Tube Type: Beam Tetrode; Plate Dissipation: 15000 W; Max Plate Voltage: 12 kV; Max Plate Current: 4.5 A; Screen Voltage: 850 V; Max Frequency: 100 MHz; Filament Voltage: 7.5 V; Filament Current: 28 A; Cooling: Water.
What is the 4CX15000A used for?
The 4CX15000A is used in high-power shortwave broadcast, international HF transmitters, long-range military communications and MW transmitters up to 500 kW.
What are alternatives or related parts to the 4CX15000A?
Related and comparable parts include 4CX10000D, 4CX20000A, 3CX15000A7, 4CX3000A, 4CX1000A and 4CX1000K. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the 4CX15000A?
The 4CX15000A 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=4CX15000A or email info@partnertubes.com.