TUBE 4CW25,000A

GENERAL DESCRIPTION


photo 4CW25,000A The 4CW25,000A is a tetrode intended for use in audio or radio frequency applications.
It is recommended for RF linear power amplifier service for television linear amplifier service, and as a switch tube for pulsed regulator service.
picture 4CW25,000A


TECHNICAL SPECIFICATIONS
Plate Dissipation (Max.) 25,000 watts
Screen Dissipation (Max.) 450 watts
Grid Dissipation (Max.) 200 watts
Frequency for Max. Ratings (CW) 110 MHz
Cooling Water and Forced Air
Filament
Voltage
Current
Thoriated Tungsten
6.3 volts
160 amperes
Capacitances (Gnd. Cath. Connection)
Input
Output
Feed-through

160 pF
24.5 pF
1.5 pF
Capacitances (Gnd. Grid Connection)
Input
Output
Feed-through

67 pF
25.5 pF
0.2 pF
Amplification Factor (g1-g2) 4.5
Base Special, Coaxial
Recommended Air-System Socket SK-300A
Maximum Seal & Envelope Temperature 250°C
Maximum Length 12.69 in; 322.00 mm
Maximum Diameter 4.75 in; 121.00 mm
Weight (approximate) 13.5 lb; 6.1 kg
Operating Position Vertical, base up or down
Specifications may change without notice

THIS TUBE IS USED IN THE FOLLOWING SHORTWAVE BROADCAST TRANSMITTERS
Manufacturer Transmitter specifications Power in kW
Marconi B 6131 250
B 6124 300
B 6126 300
B 6127 500
B 6128 500
B 6128S 500
HCJB Global HC 500 500


THIS TUBE IS AVAILABLE FROM
Manufacturer Rebuilder Distributor
Eimac Econco Richardson Electronics
e2v technologies

Penta Laboratories



PRICE LEVEL (US$)
1 2 3 4 5 6
0 - 10 10 - 100 100 - 1000 1000 - 10,000 10,000 - 50,000 50,000 - 100,000