Electron tube 4CX20000C is a high-performance ceramic/metal power tetrode
designed for audio and radio frequency applications. It is particularly well-suited for use in VHF FM broadcast transmitters. It is also recommended for rf linear power amplifier service. The anode dissipation is 20KW with forced-air cooling.
It features a type of internal mechanical structure which results in high rf operating efficiency. Low rf losses in this structure permit operation at full ratings to 110 MHz.
GENERAL CHARACTERISTICS
ELECTRICAL
Filament |
Thoriated Tungsten Mesh |
Voltage |
10.0± 0.5 V |
Current at 10.0 Volts |
140 A |
Amplification Factor, Average, Grid to Screen |
6.7 |
Direct Interelectrode Capacitances |
|
(grounded cathode) |
|
Cin |
195 pF |
Cout |
22.7 pF |
Cgp |
0.6 pF |
Direct Interelectrode Capacitances |
|
(grounded grid and screen) |
|
Cin |
87.4 pF |
Cout |
23.1 pF |
CPK |
0.08 pF |
Maximum Frequency for Full Ratings (CW) |
110 MHz |
MECHANICAL:
Maximum Overall Dimensions: |
|
Length |
9.84 in, 24.99 mm |
Diameter |
8.86 in, 22.50 mm |
Net Weight |
20.0 lbs, 9.06 kg |
Operating Position |
Vertical, Base Up or Down |
Maximum Operating Temperature: |
|
Ceramic/Metal Seals |
250°C |
Anode Core |
250°C |
Cooling |
Forced Air |
Base |
Special, Coaxial |
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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
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!