RF Power Grid Tubes · Triodes
GU-84B Russian Power Triode
Large Russian ceramic-metal triode with 3 kW plate dissipation for high-power HF and VHF broadcast and communication transmitters.
- Plate Dissipation
- 3000 W
- Max Frequency
- 150 MHz
- Max Plate Voltage
- 7.0 kV
- Max Plate Current
- 1.2 A
About the GU-84B
The GU-84B is a power triode manufactured by Svetlana / Reflector. Large Russian ceramic-metal triode with 3 kW plate dissipation for high-power HF and VHF broadcast and communication transmitters.
Key ratings of the GU-84B include tube type Triode, plate dissipation 3000 W, max plate voltage 7.0 kV, max plate current 1.2 A, mu 40 and max frequency 150 MHz.
Typical applications are HF broadcast transmitters, VHF power amplifiers, military strategic HF communications and industrial RF heating. Notable features: 3 kW plate dissipation, 150 MHz capable, russian mil-spec construction and water cooling option.
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 GU-84B 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 | 3000 W |
| Max Plate Voltage | 7.0 kV |
| Max Plate Current | 1.2 A |
| Mu | 40 |
| Max Frequency | 150 MHz |
| Filament Voltage | 20 V |
| Filament Current | 11 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
- HF broadcast transmitters
- VHF power amplifiers
- Military strategic HF communications
- Industrial RF heating
Key features
- 3 kW plate dissipation
- 150 MHz capable
- Russian mil-spec construction
- Water cooling option
Related parts & equivalents
Recommended alongside or as alternatives to the GU-84B.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for tank & matching circuits
Often ordered with the GU-84B for the same system.
Jennings UCSL 25–200 pF Variable Vacuum Capacitor 25 kV
Jennings Technology (CPI)
Frequently asked questions
What is the GU-84B?
The GU-84B is a power triode manufactured by Svetlana / Reflector. Large Russian ceramic-metal triode with 3 kW plate dissipation for high-power HF and VHF broadcast and communication transmitters.
What are the specifications of the GU-84B?
Tube Type: Triode; Plate Dissipation: 3000 W; Max Plate Voltage: 7.0 kV; Max Plate Current: 1.2 A; Mu: 40; Max Frequency: 150 MHz; Filament Voltage: 20 V; Filament Current: 11 A; Cooling: Forced air or water.
What is the GU-84B used for?
The GU-84B is used in HF broadcast transmitters, VHF power amplifiers, military strategic HF communications and industrial RF heating.
What are alternatives or related parts to the GU-84B?
Related and comparable parts include GU-43B, GU-74B, 3CX3000F7, GU-78B, 3CX15000A7 and RS 1094L. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the GU-84B?
The GU-84B 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=GU-84B or email info@partnertubes.com.