4CX250K is a ceramic-metal tetrode , with indirect oxide coated cathode and forced air cooling . The highest frequency is 500 Mhz . The intended use for it is penultimate stage and final stage power amplifiers , pulse rf power amplifiers and vibrators in ultra-short wave band radio equipments or TV transmitters .
General Characteristics
Heater Voltage 6.0 V
Heater Current 2.7 A
Amplification Factor 5
Direct Interelectrode Capacitances (Grounded Grid And Screen)
Input 17 pF
Output 6 pF
Feedback 0.05 pF
Maximum Operating Frequency 500 MHz
Maximum Height 71.5 mm
Maximum Diameter 41.6 mm
Net Weight 150 g
