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 This exhibit was withdrawn from commercial service in 1989.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, excluding the B8F base pins, is 65 mm tall.

 
Absolute Maximum Operating Conditions

Tetrode	Vh	Ah	Va	Vs	mAa	Pout	freq	f.max
	6.0	2.6	1500	300	250	235	175	500

This exhibit was last updated on 02 August 2006