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Electronic Components · Thyratrons

GKh-12A Russian Hydrogen Thyratron

Available on request ISTOK / Reflector GKh-12A

Russian hydrogen thyratron (GKh-12A) rated at 12 kV / 1000 A peak for pulsed switching in radar modulators, laser drivers, and accelerator pulse systems.

Peak Anode Voltage
12 kV
Peak Anode Current
1000 A
Tube Type
Hydrogen Thyratron
Average Anode Current
1 A
Worldwide shipping Cross-reference support Grunius BV · Groningen, NL

About the GKh-12A

The GKh-12A is a thyratron manufactured by ISTOK / Reflector. Russian hydrogen thyratron (GKh-12A) rated at 12 kV / 1000 A peak for pulsed switching in radar modulators, laser drivers, and accelerator pulse systems.

Key ratings of the GKh-12A include tube type Hydrogen Thyratron, peak anode voltage 12 kV, peak anode current 1000 A, average anode current 1 A, repetition rate up to 3000 Hz and filling Hydrogen.

Typical applications are radar pulse modulators, excimer laser drivers, accelerator injection modulators, industrial pulsed power and russian equipment replacement. Notable features: 12 kV 1000 A hydrogen thyratron, 3000 Hz high rep rate, russian military-heritage design and cost-effective import alternative.

Thyratrons are gas-filled (hydrogen or deuterium) switch tubes that discharge high-voltage pulse-forming networks in microseconds. They are the modulator switch in medical linacs, radar transmitters, lasers and pulsed-power systems, driving magnetrons and klystrons.

PartnerTubes supplies the GKh-12A 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 TypeHydrogen Thyratron
Peak Anode Voltage12 kV
Peak Anode Current1000 A
Average Anode Current1 A
Repetition Rateup to 3000 Hz
FillingHydrogen
OriginRussian

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

  • Radar pulse modulators
  • Excimer laser drivers
  • Accelerator injection modulators
  • Industrial pulsed power
  • Russian equipment replacement

Key features

  • 12 kV 1000 A hydrogen thyratron
  • 3000 Hz high rep rate
  • Russian military-heritage design
  • Cost-effective import alternative
  • Long-life hydrogen reservoir

Frequently asked questions

What is the GKh-12A?

The GKh-12A is a thyratron manufactured by ISTOK / Reflector. Russian hydrogen thyratron (GKh-12A) rated at 12 kV / 1000 A peak for pulsed switching in radar modulators, laser drivers, and accelerator pulse systems.

What are the specifications of the GKh-12A?

Tube Type: Hydrogen Thyratron; Peak Anode Voltage: 12 kV; Peak Anode Current: 1000 A; Average Anode Current: 1 A; Repetition Rate: up to 3000 Hz; Filling: Hydrogen; Origin: Russian.

What is the GKh-12A used for?

The GKh-12A is used in radar pulse modulators, excimer laser drivers, accelerator injection modulators, industrial pulsed power and russian equipment replacement.

What are alternatives or related parts to the GKh-12A?

Related and comparable parts include TGI1-1000-25, TGI1-500-10, TGU1-500-20, ITG1-500-10, ITG3-1-7.5 and TGI1-2000-35. Contact PartnerTubes to confirm interchangeability for your equipment.

Where can I buy the GKh-12A?

The GKh-12A 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=GKh-12A or email info@partnertubes.com.