GK-5A
High-power generator triode
Description
Purpose and application
GK-5A is a high-power generator triode for producing and amplifying RF energy in radio transmitters and industrial high-frequency heating equipment. Its power class requires dedicated high-voltage, heater and cooling systems.
Full descriptionCollapse description
Construction
The metal-glass construction uses a directly heated thoriated, carburised tungsten cathode. Heater voltage is 17 V and operating heater current is 580 ± 30 A; starting current may reach 720 A.
Operating data
Reference data include pulse cathode emission of at least 250 A at 2 kV and transconductance of at least 100 mA/V. The tube is approximately 518 mm high and 280 mm in diameter, with a mass near 19 kg.
Cooling and selection
Cooling is combined: the anode and cathode/grid terminals use water circuits, while the stem, envelope and seals require forced airflow. Before installation, verify the complete GK-5A marking, mounting flange, water connections and equipment passport.
The operating principle is covered in the vacuum tube article. Related devices are listed under generator and modulator tubes.
Technical details
- Designation
- GK-5A
- Device type
- High-power generator triode
- Purpose
- RF generation and power amplification
- Construction
- Metal-glass
- Cathode
- Directly heated thoriated carburised tungsten
All specificationsCollapse specifications
- Heater voltage
- 17 V
- Operating heater current
- 580 ± 30 A
- Starting heater current
- 720 A
- Minimum pulse cathode emission
- 250 A at 2 kV
- Minimum transconductance
- 100 mA/V
- Anode cooling
- Forced water
- Stem and envelope cooling
- Forced air
- Dimensions
- Approximately 518 × 280 mm
- Mass
- Approximately 19 kg
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms