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4CPX250K

Sensibly equivalent to:
8590
    
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This is the co-axial connection version of the 4CX250B tetrode. This exhibit was withdrawn from commercial service in 1989. In parallel push pull they are used in compact 1 kW VHF transmitters.
The design is made for forced air cooling. The radiator fins are clearly visible in the picture.
The co-axial envelope is 40 mm in diameter and, including the base, is 65 mm tall.
Reference: Datasheet. Type 4CPX250K was first introduced in 1970.

 

Absolute Maximum Operating Conditions
Tetrode
Vh
Ah
Va
Vs
mAa
Pout
freq
f.max
6.0
2.6
1500
300
250
235
175
500
Updated October 11, 2015.
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