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FU-307S Electron Tube High frequency machine vacuum transmitting tube thermal sealing machine oscillating tube

$590.00 $700.00 now piece
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FU-307S tube is a ceramic metal structure, thorium carbide tungsten cathode, high power water cooled triode. Mainly used in industrial high frequency heating oscillator

Characteristic parameter

Filament voltage... 8.3 V

The filament current... 150A

Transconductance (Ia=10A).................... ≥35mA/V

Amplification factor... 25

Electrode capacitance:

The anode and grid... 48pF

The cathode and gate... 49pF

Thecathode and anode... 3pF

Maximum operating frequency........................ 100MHz

Maximum height... 364mm

A maximum diameter of... 133mm

Weight (about)... 6kg

Intallation method............... Vertical, anode up or down

Cooling way... water-cooling

Water connection thread............ Inch standard pipe thread 1 "casing and seal maximum temperature................ 240 ℃ or less

Limit operating condition

Frequency... 30MHz

Filament voltage....................... 8.5 V

The filament current... 200A

Anode DC voltage........................ 12kW

Anode loss... 30kW

Grid dissipation... 1kW

Grid DC current

The anode voltage... 10kV

Grid voltage... -400V

Anode current... 4.5 A

Grid current... 0.5 A

The anode power output... 31.5 kW

Anode efficiency................ (70-75) %