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Your position: Home / Electron Tubes / Industrial heating tubes

Electron tube FU-928F High Frequency Welding Machine Amplifier Triode FU928F

The tube is mainly used as an oscillation tube in industrial high-frequency dielectric heating equipment and as an amplifier tube in radio equipment.
Price:
USD
$1972.02
$2557.91
Wholesale:
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$1825.70
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(60 available)
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For fast delivery of goods, kindly please read following tips carefully before order:

Since this triode is high value and Customs declarance necessary, 
for compliance with China foreigh exchange policy.

the Payment need to be paid through TT to our company bank account, 
therefore,
please DO  NOT pay the order directly online.

please contact EECTECH through sales@eectech.store  BEFORE order / BEFORE payment, we will help you to complete the order and payment fluently in a short time. thank you.


Introduction:
1. FU-928F is a high-power transmitting triode, coaxial cermet structure, forced air-cooled anode, direct heating thorium tungsten cathode. The operating frequency is 30MHz, the anode power dissipation is 40kW, the grid power dissipation is 1kW, and the output power is 60kW.
2. The tube is mainly used as an oscillation tube in industrial high-frequency dielectric heating equipment and as an amplifier tube in radio equipment.
3. The cathode of FU-928F electron tube, the filament adopts soft lead, which simplifies the installation


一、Characteristic parameter
Filament voltage 10V Filament current 200A
Transconductance 65mA/V Amplification factor 25
 
Interelectrode capacitance
Cathode and the gate 86pF
The anode and gate 43.5pF
Anode and cathode 3.4pF
Cooling method Anode minimum air volume 60m3/min
Minimum air volume of core column              1m3/min
 
Maximum working temperature
Into the wind 40℃
Cermet seal 250℃
Anode outer surface 250℃
Transport location Axial vertical, anode down Installation location Axial vertical, anode down
Maximum height 355mm(Excluding filament lead wire) maximum diameter 240mm
weight 21kg

二、Maximum operating value
Filament voltage highest 10.5V working frequency 30MHz
lowest 9.5V
DC anode voltage 12kV DC grid voltage -1500V
DC anode current 8.5A DC grid current 2 A
Anode dissipation power 40kW gate power dissipation 1kW

三、Typical working state (Class C RF power amplification)
Filament voltage 10V DC anode voltage 10 kV
DC gate bias -850 V Excitation voltage peak 1200 V
DC anode current 7.5 A DC grid current 1.2 A
Gate bias resistance 1.2kΩ Anode equivalent load impedance 950Ω
Anode efficiency 80% Anode output power 60kW






For delivery time: 
Generally, we will dispatch the items within 10 days upon order confirmation; some items may need 20~30 days to get ready for delivery, then we will try our best to dispatch as soon as possible, or we will contact you and offer advice.
 
For Bulk order: 
If you would like to place a bulk order, please contact us for better price and better delivery cost.


 
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