Microwave Tubes · Klystrons
L-4117 UHF CW Klystron (TV Broadcast)
UHF klystron at 860 MHz with 25 kW CW output for UHF television broadcast transmitter final stages.
- Output Power
- 25 kW
- Frequency
- 860 MHz
- Beam Voltage
- 22 kV
- Cooling
- Water
About the L-4117
The L-4117 is a klystron manufactured by Litton / L3. UHF klystron at 860 MHz with 25 kW CW output for UHF television broadcast transmitter final stages.
Key ratings of the L-4117 include tube type Klystron, frequency 860 MHz, frequency band UHF, mode CW, output power 25 kW and gain 38 dB.
Typical applications are UHF television broadcast, digital TV transmitters, regional TV stations and UHF transmitter upgrades. Notable features: 25 kW UHF broadcast power, 38 dB gain, water-cooled CW operation and wide TV bandwidth 8 MHz.
Klystrons are linear-beam microwave amplifiers delivering high gain and high peak power. They power particle accelerators, medical linacs, radar transmitters and satellite uplinks, and are usually driven by a high-voltage pulse modulator switched by a thyratron.
PartnerTubes supplies the L-4117 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 | Klystron |
|---|---|
| Frequency | 860 MHz |
| Frequency Band | UHF |
| Mode | CW |
| Output Power | 25 kW |
| Gain | 38 dB |
| Bandwidth | 8 MHz |
| Beam Voltage | 22 kV |
| 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
- UHF television broadcast
- Digital TV transmitters
- Regional TV stations
- UHF transmitter upgrades
Key features
- 25 kW UHF broadcast power
- 38 dB gain
- Water-cooled CW operation
- Wide TV bandwidth 8 MHz
- Industry TV standard klystron
Related parts & equivalents
Recommended alongside or as alternatives to the L-4117.
Similar Microwave Tubes
Comparable type, ratings, manufacturer or applications.
Frequently asked questions
What is the L-4117?
The L-4117 is a klystron manufactured by Litton / L3. UHF klystron at 860 MHz with 25 kW CW output for UHF television broadcast transmitter final stages.
What are the specifications of the L-4117?
Tube Type: Klystron; Frequency: 860 MHz; Frequency Band: UHF; Mode: CW; Output Power: 25 kW; Gain: 38 dB; Bandwidth: 8 MHz; Beam Voltage: 22 kV; Cooling: Water.
What is the L-4117 used for?
The L-4117 is used in UHF television broadcast, digital TV transmitters, regional TV stations and UHF transmitter upgrades.
What are alternatives or related parts to the L-4117?
Related and comparable parts include QKW-1553, VA-125A, TH3560, TH3591, VA-935A and VKS-7852. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the L-4117?
The L-4117 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=L-4117 or email info@partnertubes.com.