Re: 11048C feed through termination data?
|
Here is some data from the web on Naming of the connectors. I guess because they were Americans, it is better for others to say, "No, its is N for Navy". However I have been a historical electro-technology guy for years, involved with museums, the MTT, a professional microwave engineer and a college professor and I cannot stress enough the SIGNIFICANT contribution Bell Labs made. Even in something as common as the coax connector. Mil Handbook 216 from the "40's would also be a good reference I would add that the first widespread usage of the N connector was NOT in Navy gear during WWII but in airborne Elint and Jammer equipment, Army Air Force. Jammer stuff! (Of which I have a fairly complete collection, also being a life member of the AoC).
Neill & Concelman should get their due.
The Navy name is laughable as the US Navy, like it British fore-bearer (spl? dont use this much), was VERY "hide-bound" rejecting radar until it was proven out, as an example. In the Naval ASB radar, which I have, they used a (I believe British derived) monstrosity for the coax connector, as it was only 200 MHz or so, so even things like UHF connectors worked! However, detecting and jamming radars such as the Wurzburg and it Giant brother at 550 MHz,needed better gear. You see the APQ-2 and APR-4 fitted with N's from the get go. I have not consulted the Rad Lab series yet (have the whole print set), but Radar detection took precedence in N connectors. Also the Harvard Lab- OSRD part 15 Countermeasure book may be a good source as was all jammer stuff.
?
?
?
https://connectorsupplier.com/meet-the-connector-coaxial-connectors/
?
Popular Coaxial Connector Types
N, C, BNC, TNC, and other coax series have been standardized. The popular SMA started as the BRM (for Bendix Research Miniature) in 1958, followed by SSMA, SMB, SMC, and others. The Type N connector, with a threaded coupling nut with?5/8¡± UNEF 24 turns per inch thread, met the need for a durable, weatherproof, higher power, and higher frequency connector. Type N was named for work by standards committee member Paul Neill of Bell Laboratories (New York City).?Originally for DC to 1 GHz, today versions are available for up to 11 and 18 GHz.?
From left, male, cable plug, and flange mounted female (jack) N connectors, showing pin and socket center contacts. (Photos:?Pasternack Enterprises.)
Neill and Carl Concelman of Amphenol jointly developed the quick-connect (bayonet coupling) BNC connector to meet the demand for smaller connectors to work with the new smaller coaxial cables. The ¡°N¡± and ¡°C¡± came from their initials, and ¡°B¡± was either for ¡°baby,¡± because of its smaller size, or for ¡°bayonet.¡±??
J. Kruth
|
