Thickness Monitor Cable Connectors ------------------------------------- Rev. 15-Sept-2023 I believe that the small coaxial connectors on the thickness monitor cables are: Microdot type S-50 Microdot is/was the name of a company that made these connectors. I think that that company is now part of TE Connectivity. People call these "Microdot" connectors but the actual name for the generic version of this type of connector is, "10-32 connector". From Pasternack useful versions of the Microdot / 10-32 connectors are probably Pasternack Numbers: PE44351 PE44357 PE44361 From Pasternack useful adapters from the Microdot / 10-32 connectors to BNC type connectors are probably Pasternack Numbers: PE9750 PE9751 PE9752 PE9753 These adapters cost about $40. Pasternack or other companies on the web make Microdot to Microdot cables including fancy teflon and vacuum rated cables. Just google, "microdot to bnc adapters or cables" or google, "10-32 to bnc adapters or cables". The microdot cables and adapters, including fancy teflon parts, seem to be readily available.