CV79 interdigital magnetron (related to CV89 which is a frequency variant). This generates about 300mW at 6.6cm (4.55GHz).
The CV79 and CV89 were used in Wireless Set No.10 Mk.I, which played an important part in the WWII D-Day landings. This was a trailer mounted installation, using pulse modulation to enable 8-channels (e.g. 8 phone lines) over a 50 mile (optical) path. The associated receiver made use of the CV90. The Mk. II version used two CV228 heil tubes in the transmitter instead of the CV79 or CV89.
|The 'interdigital' name comes from the nature of the fingers shown in this picture.|
This file was last modified
14:59:07, Tuesday September 02, 2014