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Heater or Filament Voltage . 5  volts
Heater or Filament Current . 14.5  amperes
EIA Base . . . . . . . . . . 5BK
Prefered Substitutes . . . . None
Substitutes. . . . . . . . . None
For Characteristics and Typical Operation, See 4-250A 
Capacitances and Design Maximum Values
Cin  . . . . . . . . . . . .     12.7  pf
Cout . . . . . . . . . . . .      4.5  pf
Cgp  . . . . . . . . . . . .     0.12  pf
Plate Dissipation  . . . . .      250  watts
Screen Dissipation . . . . .       35  watts
Maximum Plate Voltage  . . .     4000  volts
Maximum Screen Voltage . . .      600  volts
Full Frequency . . . . . . .      110  MHz
Frank
W2FCA
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