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High Frequency Transmitting Electronic Tube (TH558)
US$100,000.00-120,000.00
1 Piece
Product profile
Customization
AvailableEncapsulation Structure
OtherInstallation
VerticalModel NO.
TH558, TH537, TH375Working Frequency
High FrequencyPower Level
High PowerFunction
Power TriodeMaterial
Metal CeramicFilament Voltage
23VFilament Current
180AAmplifcation Factor
4.0Power
550kwWorking Position
VerticalMax Height
650mmMax Diameter
320mmMax Weight
74kgCooling
Water and Forced AirTransport Package
Foam PackingTrademark
SETECOrigin
ChinaHS Code
8540890090Production Capacity
10PCS MonthlyKey features
High Power Output: Delivers up to 550kW output power with high gain and efficiency for transmitters.
Advanced Cooling System: Utilizes Hypervapotron anode cooling with demineralized water and forced air for safety.
Stable Operating Characteristics: Features pyrobloc grids ensuring high stability in AF and RF amplifier applications.
Versatile Operation Modes: Capable of operating in both Continuous Wave (CW) and pulse modes.
High Efficiency Design: Achieves 83.5% anode efficiency at 500kW output power.
Robust Construction: Constructed with metal-ceramic technology and coaxial structure for durability.
Wide Frequency Range: Designed for use in amplifiers up to 50MHz, suitable for medium- and short-wave.
Customizable Parameters: Offers customization for filament voltage, current, power, and physical dimensions.
Company profile

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2004-08-10Nearest Port: SHANGHAI, NINGBO, XIAMENAverage Response Time: ≤24hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF
AI-Powered supplier vetting
SummaryThe supplier is a small trading company with three employees, offering electronic and vacuum-related components and conducting import/export business. It has substantial export orientation, with 71%–90% of total sales from exports and nine years of export experience, but overseas services are limited: it reports no overseas agents or branches, warehouses, showrooms, or offline trade-show participation. Its product development capability is limited, with one R&D engineer, no new products in the past year, and no 3D software design service. It supports customization from samples. Service procedures exist for several areas, but records are absent, while quality-control test equipment is reported as zero and several quality and traceability conditions are unknown. No Fortune 500 cooperation is reported; however, repeat-buyer preference is stated at 80%–100%. Financial records are identified for recent years, but the provided information does not establish financial strength.
After-Sales capabilityThe supplier reports one-month average lead times in both peak and off-season periods and has procedures for complaint handling, supplier assessment, and corrective/preventive actions, but no written records are available. It also reports no in-stock capacity, overseas warehouse, overseas showroom, overseas agent or branch, and no overseas-service countries, indicating limited documented after-sales and overseas support capability.
R&D capabilityInnovation capability appears limited: the supplier is not identified as a professional technical supplier, does not provide 3D software design services, has one R&D engineer, and launched no new products in the past year. The engineer provides solutions according to customer demand, but this does not demonstrate broader product-development strength.
Production capacityThe supplier is described as a trading company with three employees, while manufacturing-outsourcing procedures and contracts are unknown. It reports no in-stock service capacity, and quality-control test equipment is stated as zero; therefore, the slices do not support a demonstrated production capability and identify material operational limitations.
Customization capabilityThe supplier explicitly provides customization from samples, and its sole R&D engineer is responsible for providing solutions according to client demand. This supports sample-based customization, although no evidence is provided for advanced design or 3D engineering services.
Product Q&A
Q:What is the maximum output power of the TH558 tube?
A:
The TH558 tube delivers up to 550kW of output power.
Q:What cooling methods are used for this tube?
A:
It employs Hypervapotron anode cooling with demineralized water (min 110l/mn) and forced air through the tube base.
Q:Can this tube operate in pulse mode?
A:
Yes, the tube may be operated in CW or pulse modes, with pulse parameters depending on specific equipment characteristics.
Q:What is the working frequency range?
A:
It is designed for use in AF and RF amplifiers up to 50MHz.
Q:What are the filament supply requirements?
A:
The filament supply requires 23V and 500A.
Send Inquiry
*To:
Ningbo Setec Electron Co., Ltd.
Ningbo Setec Electron Co., Ltd.*Content:
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