RF Power Grid Tubes · Tetrodes
4CX5000A Ceramic Tetrode
Available on request
Eimac / CPI
4CX5000A
Large ceramic-metal tetrode with 5 kW plate dissipation, used in medium-power broadcast transmitters and high-power RF amplifiers.
- Plate Dissipation
- 5000 W
- Max Frequency
- 110 MHz
- Max Plate Voltage
- 7.5 kV
- Max Plate Current
- 2.0 A
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
4CX5000A
Request quote
About the 4CX5000A
The 4CX5000A is a power tetrode manufactured by Eimac / CPI. Large ceramic-metal tetrode with 5 kW plate dissipation, used in medium-power broadcast transmitters and high-power RF amplifiers.
Key ratings of the 4CX5000A include tube type Beam Tetrode, plate dissipation 5000 W, max plate voltage 7.5 kV, max plate current 2.0 A, screen voltage 600 V and transconductance 80 mA/V.
Typical applications are medium-wave AM broadcast, FM broadcast final stage, high-power HF transmitters and industrial RF heating. Notable features: 5 kW plate dissipation, high transconductance 80 mA/V, air or water cooling and proven broadcast design.
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 4CX5000A 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 | 5000 W |
| Max Plate Voltage | 7.5 kV |
| Max Plate Current | 2.0 A |
| Screen Voltage | 600 V |
| Transconductance | 80 mA/V |
| Max Frequency | 110 MHz |
| Filament Voltage | 7.5 V |
| Filament Current | 14 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
- Medium-wave AM broadcast
- FM broadcast final stage
- High-power HF transmitters
- Industrial RF heating
Key features
- 5 kW plate dissipation
- High transconductance 80 mA/V
- Air or water cooling
- Proven broadcast design
Related parts & equivalents
Recommended alongside or as alternatives to the 4CX5000A.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for output networks
Often ordered with the 4CX5000A 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 4CX5000A?
The 4CX5000A is a power tetrode manufactured by Eimac / CPI. Large ceramic-metal tetrode with 5 kW plate dissipation, used in medium-power broadcast transmitters and high-power RF amplifiers.
What are the specifications of the 4CX5000A?
Tube Type: Beam Tetrode; Plate Dissipation: 5000 W; Max Plate Voltage: 7.5 kV; Max Plate Current: 2.0 A; Screen Voltage: 600 V; Transconductance: 80 mA/V; Max Frequency: 110 MHz; Filament Voltage: 7.5 V; Filament Current: 14 A; Cooling: Forced air or water.
What is the 4CX5000A used for?
The 4CX5000A is used in medium-wave AM broadcast, FM broadcast final stage, high-power HF transmitters and industrial RF heating.
What are alternatives or related parts to the 4CX5000A?
Related and comparable parts include 4CX3000A, 4CX10000D, 3CX5000A7, 4CX1000A, 4CX15000A and 4CX20000A. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the 4CX5000A?
The 4CX5000A 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=4CX5000A or email info@partnertubes.com.