RF Power Grid Tubes · Triodes
3CX30000H7 Ceramic Triode
Available on request
Eimac / CPI
3CX30000H7
Very large ceramic triode with 30 kW plate dissipation, among the highest-power triodes available for MW broadcast and strategic HF transmitters.
- Plate Dissipation
- 30000 W
- Max Frequency
- 100 MHz
- Max Plate Voltage
- 16 kV
- Max Plate Current
- 8.0 A
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
3CX30000H7
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About the 3CX30000H7
The 3CX30000H7 is a power triode manufactured by Eimac / CPI. Very large ceramic triode with 30 kW plate dissipation, among the highest-power triodes available for MW broadcast and strategic HF transmitters.
Key ratings of the 3CX30000H7 include tube type Triode, plate dissipation 30000 W, max plate voltage 16 kV, max plate current 8.0 A, mu 160 and max frequency 100 MHz.
Typical applications are MW medium-wave broadcast 500 kW+, strategic shortwave broadcast and very high-power HF communications. Notable features: 30 kW plate dissipation, water-cooled mega-tube, high power level for broadcast service and long-range broadcast applications.
Power triodes are three-electrode grid tubes used as RF oscillators and amplifiers in industrial RF heating (plastic welding, induction heating, drying), RF-excited CO₂ lasers, broadcast transmitters and particle accelerators. In oscillator service they work with vacuum capacitors in the tank and matching circuits.
PartnerTubes supplies the 3CX30000H7 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 | Triode |
|---|---|
| Plate Dissipation | 30000 W |
| Max Plate Voltage | 16 kV |
| Max Plate Current | 8.0 A |
| Mu | 160 |
| Max Frequency | 100 MHz |
| Filament Voltage | 5.0 V |
| Filament Current | 70 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
- MW medium-wave broadcast 500 kW+
- Strategic shortwave broadcast
- Very high-power HF communications
Key features
- 30 kW plate dissipation
- Water-cooled mega-tube
- High power level for broadcast service
- Long-range broadcast applications
Related parts & equivalents
Recommended alongside or as alternatives to the 3CX30000H7.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for tank & matching circuits
Often ordered with the 3CX30000H7 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 3CX30000H7?
The 3CX30000H7 is a power triode manufactured by Eimac / CPI. Very large ceramic triode with 30 kW plate dissipation, among the highest-power triodes available for MW broadcast and strategic HF transmitters.
What are the specifications of the 3CX30000H7?
Tube Type: Triode; Plate Dissipation: 30000 W; Max Plate Voltage: 16 kV; Max Plate Current: 8.0 A; Mu: 160; Max Frequency: 100 MHz; Filament Voltage: 5.0 V; Filament Current: 70 A; Cooling: Water.
What is the 3CX30000H7 used for?
The 3CX30000H7 is used in MW medium-wave broadcast 500 kW+, strategic shortwave broadcast and very high-power HF communications.
What are alternatives or related parts to the 3CX30000H7?
Related and comparable parts include 3CX15000A7, 4CX20000A, 3CX10000H3, 3CX5000A7, 3CX3000F7 and 8874. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the 3CX30000H7?
The 3CX30000H7 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=3CX30000H7 or email info@partnertubes.com.