CV43 S-band TR cell. Described as a "gas-filled resonator spark gap".
The nominal wavelength of the CV43 is 9.1cm but it can be tuned between 8.95cm and 9.25cm by adjusting two tuning plungers. The gas filling is argon and water vapour at 6mm Hg pressure.
The datasheet for this device has some testing information: "After a shelf life of 48 hours, the valve shall be tested with a Tessla coil for air-leak. The colour of the resulting discharge shall be whitish-blue. A tendancy to a reddish-purple discharge, indicating too high an air content, shall cause the valve to be rejected."
Views of each end of the device.
This file was last modified
12:20:05, Monday July 06, 2020