The CV238 klystron is an S Band device and operates in the frequency range 2.93 - 3.13 GHz. It was developed from earlier devices for airborne Radar use. The resonator, (like anode) operates at 250 Volts. The top cap is the reflector and this would have typically 100 - 175 Volts on it. As the reflector voltage is altered over the range a series of peaks in output power would be seen. The strongest would be chosen for use. The electrical tuning range is 20 MHz and was required to hold the tube on frequency as temperature etc. altered. All klystrons are very frequency sensitive to temperature changes, as the cavity and drift space will expand or contract with temperature changes.

The CV238 seen from the opposite side.

The thin glass tube envelope is 17 mm in diameter and, excluding the IO base pins, is 85 mm tall. The encircling cavity is 46 mm in diameter and 14 mm thick.

 
Pin Connections

IO	1	2	3	4	5	6	7	8	tc
	g1	h	-	Res	-	-	h	k	Ref

This exhibit was last updated on 19 March 2005