FU-100F vacuum electron tube equivalent to 4CX1000A for hf dielectric heating, induction heating

FU-100F vacuum electron tube can replace 4CX1000A.

(Electrical characteristics)
Filament voltage)………………………………………6V
(Filament current)……………………………………9.5A
(Transconductance)………………………… ≥14.3mA/V
(Amplification factor)……………………………………… 5
(Static electrode voltage)…………… -(50～65)V
Interelectrode capacitance(cathode grounding)
(Input.at most) ………88pF
(Output.at most)………13pF
(Transter.at most)…0.05pF
(Operating position):……………… (Vertical)
(Cooling):…………(forced air)
(Cooling speed)………………………………≥1m3/min
(Stem andceramic–to–metal seals temperature)……………………………… ≤250℃
(Lead-out part temperature)……………………………… ≤200℃
(Height:at most)……………………………… 122.7mm
(Diameter:at most)……………………………………85.47mm
(Mass)……………………………840g


(Typical working state)
(Anode voltage DC)
2000 2500 3000 V
(Grid2 voltage DC)
325 325 325 V
(Grid1 voltage)
-60 -60 -60 V
(Zero- signal anode current)
500 500 500 mA
(The biggest signal anode current)
1.78 1.77 1.75A
(Zero- signal grid2 current)
16 12 10 mA
(The biggest signal grid2 current)
70 70 70 mA
(Effective load)
2.04 2.85 3.68 kΩ
(Effective incentive power)
0 0 0
(Output power)
1.86 2.6 3.26 kW
(f=110MHz)(Limit Operating Values)
(Cathode heating time:at least)………………………………………3 min
(Filament voltage error)………………………………………±5％
(Filament current)…………………………………9～10.5 A
(Crest filament implulse current)…………………………………………15A
(Crest anode current DC)…………3kV
(Crest grid2 voltage DC)……………………………………400V
(Crest grid1 voltage DC)……………………………………-150V
((Crest anode average current)……………………………………… 1A
(Crest grid2 average current)………………………………… …37mA
(Crest anode dissipation)…………………………………… 1000W
(Crest grid1 dissipation)…………………………………………0
(Crest grid2 dissipation)………………………………………12W