RF Power Grid Tubes · Triodes
CTK 12-4 Metal-Ceramic Power Triode
Available on request
Thomson / Thales
CTK 12-4
Thales metal-ceramic power triode in the CTK 12 family widely used in CO₂ laser cutting machine oscillators and industrial RF circuits up to 120 MHz.
- Max Frequency
- 120 MHz
- Cooling
- Forced air
- Tube Type
- Triode
- Construction
- Metal-ceramic coaxial
Worldwide shipping
Cross-reference support
Grunius BV · Groningen, NL
CTK 12-4
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About the CTK 12-4
The CTK 12-4 is a power triode manufactured by Thomson / Thales. Thales metal-ceramic power triode in the CTK 12 family widely used in CO₂ laser cutting machine oscillators and industrial RF circuits up to 120 MHz.
Key ratings of the CTK 12-4 include tube type Triode, max frequency 120 MHz, construction Metal-ceramic coaxial, cooling Forced air and cathode Thorium tungsten.
Typical applications are CO₂ laser cutting machine oscillators, industrial RF oscillators, RF induction heating, plastic welding systems and wood gluing equipment. Notable features: CTK 12 series design, metal-ceramic coaxial construction, thorium tungsten cathode and CO₂ laser optimised.
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 CTK 12-4 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 |
|---|---|
| Max Frequency | 120 MHz |
| Construction | Metal-ceramic coaxial |
| Cooling | Forced air |
| Cathode | Thorium tungsten |
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
- CO₂ laser cutting machine oscillators
- Industrial RF oscillators
- RF induction heating
- Plastic welding systems
- Wood gluing equipment
Key features
- CTK 12 series design
- Metal-ceramic coaxial construction
- Thorium tungsten cathode
- CO₂ laser optimised
- Thomson/Thales manufacture
Related parts & equivalents
Recommended alongside or as alternatives to the CTK 12-4.
Similar RF Power Grid Tubes
Comparable type, ratings, manufacturer or applications.
Vacuum capacitors for tank & matching circuits
Often ordered with the CTK 12-4 for the same system.
Frequently asked questions
What is the CTK 12-4?
The CTK 12-4 is a power triode manufactured by Thomson / Thales. Thales metal-ceramic power triode in the CTK 12 family widely used in CO₂ laser cutting machine oscillators and industrial RF circuits up to 120 MHz.
What are the specifications of the CTK 12-4?
Tube Type: Triode; Max Frequency: 120 MHz; Construction: Metal-ceramic coaxial; Cooling: Forced air; Cathode: Thorium tungsten.
What is the CTK 12-4 used for?
The CTK 12-4 is used in CO₂ laser cutting machine oscillators, industrial RF oscillators, RF induction heating, plastic welding systems and wood gluing equipment.
What are alternatives or related parts to the CTK 12-4?
Related and comparable parts include CTK 12-1, CTK 12-3, CTK 15-2, CTK 3-1, CTK 5-1 and CTK 5-2. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the CTK 12-4?
The CTK 12-4 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=CTK%2012-4 or email info@partnertubes.com.