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High Frequency Metal Ceramic Electron Tube (8T25RA)
US$1,300.00-1,600.00
1 Piece
Product profile
Customization
AvailableShape
Metal Porcelain TubeShielding Type
OtherModel NO.
8T25RACooling Method
Air Cooled TubeWorking Frequency
High FrequencyStructure
Metal CeramicEncapsulation Structure
OtherPower Level
High PowerMaterial
Metal CeramicFilament Voltage
7.5-8.5VFilament Current
130AAmplifcation Factor
20Maximum Working Frequency
40MHzWorking Position
VerticalMax Height
402.5mmMax Diameter
202mmMax Weight
18kgCooling
Forced AirTransport Package
Foam PackingTrademark
SETECOrigin
ChinaHS Code
8540890090Production Capacity
100PCS MonthlyKey features
High Power Output: Delivers up to 28kW continuous output power at frequencies below 40MHz.
Robust Construction: Features metal-ceramic structure with directly heated thorium tungsten cathode.
Industrial Application: Designed specifically for oscillators and amplifiers in industrial high-frequency heating.
Flexible Operation: Supports both CW and pulse modes for versatile industrial use cases.
High Voltage Rating: Rated for DC Anode Voltage up to 14kV and DC Anode Current of 4.5A.
Compact Dimensions: Max diameter 202mm and height 402.5mm, weighing 10.7kg for easy integration.
Wide Frequency Range: Maximum working frequency reaches 40MHz for high-frequency applications.
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 8T25RA tube?
A:
The continuous output power can reach up to 28kW when the frequency is less than 40MHz.
Q:Is the 8T25RA suitable for pulse mode operation?
A:
Yes, this tetrode may be operated in CW or pulse modes, though pulse parameters depend on equipment characteristics.
Q:What are the main applications for this tube?
A:
It is mainly used as oscillators and amplifiers in industrial high-frequency medium heated equipment.
Q:What is the maximum working frequency?
A:
The maximum working frequency is 40MHz.
Q:What is the DC Anode Voltage limit?
A:
The DC Anode Voltage limit is 14kV under limit working conditions.
Send Inquiry
*To:
Ningbo Setec Electron Co., Ltd.
Ningbo Setec Electron Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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