The CV35 is a tunable klystron that has an International Octal base and was designed to operate as an oscillator at a wavelength of 10 cm (3 GHz). The mounting plate can be seen in the picture. As is typical of klystrons the reflector is taken to the top cap. The inset picture shows the external cavity.

The thin glass tube envelope is 31 mm in diameter and, excluding the IO base pins, is 165 mm tall.

Reference: Datasheet. Type CV0035 was first introduced^¶ in 1941.

 
Pin Connections

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

 
Absolute Maximum Operating Conditions^¶

Klystron	Vh	Ah
	4.0	1.45

Thanks to Frank Philipse for supplying the above PDF datasheet