Exhibit 7 - Early microwave components
During the Second World War the Clarendon Laboratory was partly engaged in the development of microwave components which were used by other establishments for operational radar. One aim was to achieve shorter wavelengths to improve the resolution of targets. A number of such devices as shown above.
In the top row from left to right are an early 10cm wavelength single cavity secondary emission klystron, a 10cm reflex klystron and a 10cm transmit-receive cell. In the bottom row are a tungsten-silicon "cat's-whisker" type detector, a 1.25cm wavelength reflex klystron and the anode block of a 6mm wavelength water cooled magnetron.