What is the material structure of the tube?

It features a metal ceramic structure with a directly heating thorium tungsten cathode.

What are the main applications for this triode?

It is mainly used in voice frequency class B amplifiers, modulators, linear amplifiers, and class C high frequency amplifiers.

What is the weight of the tube?

The maximum weight of the tube is 5.5kg.

High Frequency Metal Ceramic Electron Vacuum Tube 3cw20000A7

Name: High Frequency Metal Ceramic Electron Vacuum Tube 3cw20000A7
Brand: Ningbo Setec Electron Co., Ltd.
SKU: 775803215

Zhejiang, ChinaNingbo Setec Electron Co., Ltd.

US$4,500.00-5,500.00

1 Piece

Product profile

Customization

Available

Encapsulation Structure

Other

Working Frequency

High Frequency

Model NO.

3CW20000A7

Power Level

High Power

Function

Power Triode

Material

Metal Ceramic

Filament Voltage

7.5V

Filament Current

100A

Amplifcation Factor

200

Power

20kw

Working Position

Vertical

Max Height

525.8mm

Max Diameter

171.4mm

Max Weight

5.5kg

Cooling

Water and Forced Air

Transport Package

Foam Packing

Trademark

SETEC JINGGUANG

Origin

China

HS Code

8540890090

Production Capacity

100PCS Monthly

Key features

High Power Output: Delivers up to 24.2kW anode output power with 20kW dissipation capacity.

High Frequency Range: Operates at high frequencies up to 140MHz for versatile RF applications.

Durable Construction: Features metal-ceramic structure with directly heating thorium tungsten cathode.

Versatile Cooling: Combines forced air cooling for the stem and forced water cooling for the anode.

Wide Application: Ideal for voice frequency class B amplifiers, modulators, and linear amplifiers.

Flexible Operation: Supports both CW and pulse modes for diverse industrial RF requirements.

Robust Design: Coaxial design with vertical working position and max height of 525.8mm.

High Efficiency: Amplification factor of 200 with low interelectrode capacitances for performance.

Company profile

Ningbo Setec Electron Co., Ltd.

Zhejiang, China

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.