Microwave Tubes · IOTs
QKW-1553 UHF Inductive Output Tube (IOT)
UHF inductive output tube (IOT) for digital TV broadcast, delivering 60 kW CW output over the 470–860 MHz UHF television band with high efficiency.
- Output Power
- 60 kW CW
- Frequency Band
- UHF
- Beam Voltage
- 28 kV
- Cooling
- Water
About the QKW-1553
The QKW-1553 is a inductive output tube (IOT) manufactured by e2v Technologies. UHF inductive output tube (IOT) for digital TV broadcast, delivering 60 kW CW output over the 470–860 MHz UHF television band with high efficiency.
Key ratings of the QKW-1553 include tube type IOT (Inductive Output Tube), frequency band UHF, frequency range 470–860 MHz, output power 60 kW CW, gain 22 dB and efficiency >65%.
Typical applications are digital UHF TV broadcast transmitters, DVB-T and ATSC transmitters, UHF TV regional stations and high-power broadcast upgrade from klystron. Notable features: 60 kW UHF broadcast output, >65% high efficiency, wide UHF TV band coverage and low group delay for digital TV.
Inductive output tubes combine features of tetrodes and klystrons, providing high-efficiency UHF amplification for digital TV transmitters and accelerator RF systems.
PartnerTubes supplies the QKW-1553 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 | IOT (Inductive Output Tube) |
|---|---|
| Frequency Band | UHF |
| Frequency Range | 470–860 MHz |
| Output Power | 60 kW CW |
| Gain | 22 dB |
| Efficiency | >65% |
| Beam Voltage | 28 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
- Digital UHF TV broadcast transmitters
- DVB-T and ATSC transmitters
- UHF TV regional stations
- High-power broadcast upgrade from klystron
Key features
- 60 kW UHF broadcast output
- >65% high efficiency
- Wide UHF TV band coverage
- Low group delay for digital TV
- Lower power consumption than klystron
Related parts & equivalents
Recommended alongside or as alternatives to the QKW-1553.
Similar Microwave Tubes
Comparable type, ratings, manufacturer or applications.
Broadcast transmitter components
Often ordered with the QKW-1553 for the same system.
Frequently asked questions
What is the QKW-1553?
The QKW-1553 is a inductive output tube (IOT) manufactured by e2v Technologies. UHF inductive output tube (IOT) for digital TV broadcast, delivering 60 kW CW output over the 470–860 MHz UHF television band with high efficiency.
What are the specifications of the QKW-1553?
Tube Type: IOT (Inductive Output Tube); Frequency Band: UHF; Frequency Range: 470–860 MHz; Output Power: 60 kW CW; Gain: 22 dB; Efficiency: >65%; Beam Voltage: 28 kV; Cooling: Water.
What is the QKW-1553 used for?
The QKW-1553 is used in digital UHF TV broadcast transmitters, DVB-T and ATSC transmitters, UHF TV regional stations and high-power broadcast upgrade from klystron.
What are alternatives or related parts to the QKW-1553?
Related and comparable parts include L-4117, VA-125A, EEV-K3100, EEV-K4052, E3780 and SV-3174. Contact PartnerTubes to confirm interchangeability for your equipment.
Where can I buy the QKW-1553?
The QKW-1553 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=QKW-1553 or email info@partnertubes.com.