RF Power Grid Tubes · Tetrodes
4CX600J Ceramic Tetrode
Available on request
Eimac / CPI
4CX600J
Ceramic beam tetrode with 600 W plate dissipation for high-power VHF amplification and industrial RF induction heating.
- Plate Dissipation
- 600 W
- Max Frequency
- 120 MHz
- Max Plate Voltage
- 5.0 kV
- Max Plate Current
- 350 mA
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
4CX600J
Request quote
About the 4CX600J
The 4CX600J is a power tetrode manufactured by Eimac / CPI. Ceramic beam tetrode with 600 W plate dissipation for high-power VHF amplification and industrial RF induction heating.
Key ratings of the 4CX600J include tube type Beam Tetrode, plate dissipation 600 W, max plate voltage 5.0 kV, max plate current 350 mA, screen voltage 400 V and transconductance 30 mA/V.
Typical applications are high-power VHF transmitters, RF induction heating, industrial plasma generation and VHF broadcast final stage. Notable features: 600 W plate dissipation, air or water cooling, high gain ceramic tetrode and rugged industrial-grade construction.
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 4CX600J 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 | 600 W |
| Max Plate Voltage | 5.0 kV |
| Max Plate Current | 350 mA |
| Screen Voltage | 400 V |
| Transconductance | 30 mA/V |
| Max Frequency | 120 MHz |
| Filament Voltage | 6.3 V |
| Filament Current | 3.5 A |
| Cooling | Forced air / 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 VHF transmitters
- RF induction heating
- Industrial plasma generation
- VHF broadcast final stage
Key features
- 600 W plate dissipation
- Air or water cooling
- High gain ceramic tetrode
- Rugged industrial-grade construction
Related parts & equivalents
Recommended alongside or as alternatives to the 4CX600J.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for output networks
Often ordered with the 4CX600J 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 4CX600J?
The 4CX600J is a power tetrode manufactured by Eimac / CPI. Ceramic beam tetrode with 600 W plate dissipation for high-power VHF amplification and industrial RF induction heating.
What are the specifications of the 4CX600J?
Tube Type: Beam Tetrode; Plate Dissipation: 600 W; Max Plate Voltage: 5.0 kV; Max Plate Current: 350 mA; Screen Voltage: 400 V; Transconductance: 30 mA/V; Max Frequency: 120 MHz; Filament Voltage: 6.3 V; Filament Current: 3.5 A; Cooling: Forced air / water.
What is the 4CX600J used for?
The 4CX600J is used in high-power VHF transmitters, RF induction heating, industrial plasma generation and VHF broadcast final stage.
What are alternatives or related parts to the 4CX600J?
Related and comparable parts include 4CX350A, 4CX1000A, 4-400A, 4CX10000D, 4CX3000A and 4CX5000A. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the 4CX600J?
The 4CX600J 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=4CX600J or email info@partnertubes.com.