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Ceramic Vacuum Electron Tube FTL3-2,Power Triode Tube FTL3-2

$1900.00 $2000.00 now piece
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FTL3-2 tube is improved on the basis of the same type of glass shell in foreign countries to ceramic structure, direct heat thorium tungsten cathode, forced air cooled triode. The maximum operating frequency is 60MHz, the maximum anode dissipation power is 5kW, the maximum grid dissipation power is 150W, and the maximum anode output power is 7kW. The tube type is mainly used for industrial high frequency heating equipment.

Characteristic parameter

Filament Voltage... 12V

Filament Current... Filament current... 26A

The Amplification Factor... 28

Transduction (Feedback) ………………… 13mA/V

Interelectrode capacitance (Grounded Filament) Interelectrode Capacitances (grounded filament)


Enter (Input) ……………… 15pF

Grid-Plate... 0.35 pF

The Output is …………… 12pF

Maximum Weight ………… 4kg

Maximum height (Maximum Length)... The 201.5 mm

Maximum Diameter... The 122.6 mm

Installation mode: Vertical installation

Maximum operating temperature: 250℃

Cooling method: forced air cooling

Limit service data

Anode Voltage (DC Plate Voltage) 7kV

Anode Current (DC Plate Current)... 1.75 A

Grid Current (DC Grid Voltage)... 0.6 A

Grid Dissipation... 150W

Plate Dissipation (Plate Dissipation)... 5kW

Grid Resistance... 5 k Ω

Typical operating condition (30MHz)

Anode Voltage (DC Plate Voltage) 6kV

Anode Current (DC Plate Current)... 1.6 A

Grid Current (DC Grid Voltage)... 0.22 A


Grid Dissipation... 150W

Plate Output Power: 6.6kW

Grid Resistance... 1.45 k Ω