4CX250B/7203

The Eimac 4CX250B/7203 has a maximum plate dissipation rating of 250 watts and a maximum input power rating of 500 watts. The 4CX250B/7203 is designed to operate with a heater voltage of 6.0 volts.
 

Characteristics

Plate Dissipation (Max.) 250 Watts
Screen Dissipation (Max.) 12 Watts
Grid Dissipation (Max.) 2 Watts
Frequency for Max. rating (CW) 500 MHz
Amplification Factor 5
Filament/Cathode Oxide Coated
    Voltage
    Current
 6.0 Volts
2.6 Amps
Capacitance Grounded Cathode
    Input
    Output
    Feedthrough
 15.7 pf
4.5 pf
.04 pf
Capacitance Grounded Grid
    Input
    Output
    Feedthrough
 13.0 pf
4.5 pf
.01 pf
Cooling Forced Air
Base 9 Pin Special
Air Socket SK-600A
Air Chimney SK-606
Boiler ---
Length 2.46 in; 62.50 mm
Diameter 1.64 in; 41.70 mm
Weight 4 oz; 113 gm


 
Maximum Ratings Typical Operation
Class
of
Operation		 Type of Service Plate Voltage (Volts) Plate current (Amps) Plate Voltage (Volts) Screen Voltage (Volts) Plate Current (Amps) Drive Power (Watts) Output Power (kiloWatts)
C RF Amplifier up to 175 MHz 2,000 0.25 2,000 300 .025 2.9 0.390
C RF Amplifier Plate Modulated up to 175 MHz 1,500 0.20 1,500 250 0.20 1.7 0.235
AB1 RF Linear Amplifier up to 175 MHz 2,000 0.25 2,000 350 0.25 --- 0.300
AB1 RF Linear Amplifier(AM Service) up to 175 MHz 2,000 0.25 2,000 350 0.15 --- 0.65
AB1 Af Amlifier or Modulator 2,000 0.25 2,000 350 0.50 --- 0.600

Characteristics and Operating values are based on performance tests. Figures may change without notice as the result of additional data or product refinement. CPI Eimac Division should be consulted before using this information for final equipment design.
Last page update 3/21/97 5:00:57 PM
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