Virtual Valve Museum

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CV109 transmitting klystron

Size This klystron measures 190x100mm overall at the widest points.

This is a pulse transmitting klystron which was used for beacon applications.

Heater voltage 4V
Heater current 2.5A
Max peak anode voltage 10kV
Max collector dissipation 170W
Operating frequency 3280MHz


Pin Function
1 n/c
2 Heater
3 n/c
4 n/c
5 n/c
6 n/c
7 Heater/cathode
8 n/c

Connection to the collector is made via the diffuser. The valve is designed for forced air cooling such that the temperature of the edge of the collector disc does not exceed 100C.

The CV test specifications for the CV109 indicate a maximum power output of 250W, under test conditions with 7kV to the resonator and collector, a pulse length of 3µs and PRF of 18,000 pps.


Side view

Quarter view