Product Description

The 3CX2500F3 & 3CX2500H3 are forced air cooled, ceramic—metal hign-mu amplifier factor triodes containing a thoriated tungsten carbide cathode, intended for use in industrial RF heating service. The flexible base leads for grid and filament connection serve to simplify socketing in low-frequency applications.
GENERAL CHARACTERISTICS
Filament Voltage ……………………… 7.5 V
Filament Current ……………………… 51.5 A
Transconductance ……………………… 20 mA/V
Amplification Factor………………………… 20
Interelectrode Capacitance (Grouded Cathode)
Cin …………………………………… 35 pF
Cout…………………………………… 0.9 pF
Cgp ……………………… …………… 20 pF
Operation Position ………Vertical, base up or down
Cooling …………………………… … Forced Air
Maximum Anode Core and Seal Temprature
……………………………………………… 250 ℃
Maximum Height ……………………… 468.30 mm
Maximum Diameter …………………… 105.56 mm
Weight …………………………………… 3.4 kg
MODULATOR- CLASS AB & CLASS B
OR AF POWER AMPLIFIER
Maximum Ratings Absolute ＆#118alue
Plate Voltage ……………………………… 6 kVdc
Plate Current ……………………………… 2.5 Adc
Plate Dissipation………………………… 4 kW
Grid Dissipation ………………………… 150 W
Grid Voltage …………………………… -1 kVdc
TYPICAL OPERATION
Two tube unless noted, Sinusoidal Wave
Plate Voltage …………… 4 5 6 kVdc
Grid Voltage ………… -150 -190 -240 Vdc
Zero-Signal Plate Current … 0.6 0.5 0.4 Adc
Max-Signal Plate Current ……4.0 3.2 3.0 Adc

Efficiency Plate Impedance … 2.2 3.6 4.65 Ω
……… 340 360 390 V
…………… 340 230 225 W

Plate Modulated RF Amplifier Class C Telegraphy
Plate Voltage ……………………………… 5.5 kVdc
Plate Current ……………………………… 2.0 Adc
Plate Dissipation………………………… 2.67 kW
Grid Dissipation ………………………… 150 W
Grid Voltage …………………………… -1 kVdc
Typical Operation (Frequency below 30MHz)
Plate Volgate ………………… 4 4.5 5 kVdc
Plate Current ……………… 1.67 1.47 1.25 Adc
Grid Voltage ………………-450 -500 -550 Vdc
Peak RF Grid Input Voltage ………685 715 760 V
Driving Power …………………… 125 100 115 W
Grid Dissipation ……………………43 30 32 W
Plate Input Power …………… 6670 6615 6250 W
Plate Dissipation ……………… 1670 1315 950 W
Plate Output Power ……………… 5 5.3 5.3 kW
RF POWER AMPLIFIER OR OSCILLATOR
Maximum Ratings Absolute ＆#118alue
Plate Voltage ……………………………… 6 kVdc
Plate Current ………………………………2.5 Adc
Plate Dissipation ……………………………… 5 kW
Grid Dissipation ………………………………150 W
Grid Voltage ……………………………… -1 kVdc
Grid Current ………………………………0.4 Adc
Typical Operation (Frequecy below 30MHz)
Plate Voltage ……………………4 5 6 kVdc
Plate Current ………………… 2.5 2.5 2.08 Adc
Grid Voltage ……………… -300 -450 -500 Vdc
Grid Current ………………… 245 265 180 mAdc
Peak RF Grid Input Voltage……… 580 750 765 V
Driving Power ………………… 142 197 136 W
Grid Dissipation ………………… 68 78 46 W
Plate Input Power …………………10 12.5 12.5 kW

Plate Output Power ………………… 7.5 10 10 kW
Plate Dissipation …………………2.5 2.5 2.5 kW


Metal ceramic transmitting tube


4CX150F 4CX250B/FG 4CX300A 4CX350A/F

4CX1000A 4CX1500A/B 4CX3000A 4CX5000A

4CX10000D 4CX15000A 4CPX150K 6T51 7T62R

E3062 7T69RB 7T84RB 7T85RB 8T25RA 8T85RB

8T87RB 3CX800A7 3CX1500A7 3CX2500A3/F3/H3

3CX3000A1/A7/F1/F7 3CX4500F3(YU-108)

3CX6000A7(YU-148) 3CX10000A3/A7/H3

3CX15000A3/A7/H3 3CX20000H3 3CW30000H3

3CW40000H3 3CW45000H3


Industrial High-Frequeny Heating Tubes:


6T51 7T62R(E3062C) 8T25RA8T85RB 8T87RB

7T69RB 7T84RB 7T85RB 3CX800A7 3CX1500A7

3CX2500A3/F3/H33CX3000A3/F7/A7 3CX4500/F3

YU-108 3CX6000A7(YU-148) 3CX10000A3/F3/H3

3CX15000A3/F3/H3 3CX20000H3 3CW30000H3

33CW40000H3 3CX45000H3 BW1184J2 BW1185J2

BW1608F RS3060CJ RS3500C TH382 TH347 TH5-6

ITL5-1 TH6-3A


Microwave CW Magnetrons:


2450MHz 850W、950W、1000W、5KW、10KW,

915MHZ 5KW、30Kw,

At the same time , please be kindly to provide us your type needed , and then we can give you our similar products to replace it!