Need Help Identifying this connector - Page 1
Forum section: electronics / rf-microwave

author: OmegaHyperion
author_rank: Contributor
timestamp: October 03, 2019, 08:45:40 pm
content: Hope this is the right sub forum for this.Anyway, i have this bayonet connector used extensively in a machine of mine, and id like to make some more cables. However, i am having difficulties identifying it. Included are some pictures of it next to a BNC and a mechanical Pencil, as well as the socket for themIn the Schematics the socket is labeled as king km1916, but i have yet to find anything using that name. So, im coming to you guys for help with this. The machine is from the 70's btw.Id much appreciate any input / assistance on this!

author: Twoflower
author_rank: Frequent Contributor
timestamp: October 03, 2019, 09:19:45 pm
content: It looks a bit like a reverse polarity BNC connector. But it is lacking the inner shield ring on the original connector and due to the violation of the 'minimum focus distance' on the last picture it's hard to say, but I don't think that they'll fit.Can you read the imprint on the socket? It seems to be very readable, maybe the manufacturer name?Eventually looking fo 'reverse polarity' coax will find something that matches.Why not modify the socket to (reverse) BNC? You only should check the impedance(50Ohm or 75Ohm).I just saw the 45Ohm on the connector.

author: OmegaHyperion
author_rank: Contributor
timestamp: October 03, 2019, 09:44:09 pm
content: Here is a crop from the same image as the above, but a bit sharper. If you guys want more details, i will take a macro lens and DSLR with me tomorrow to take proper macro images.

author: FransW
author_rank: Frequent Contributor
timestamp: October 05, 2019, 09:47:06 am
content: Looks like a C-connector:https://en.wikipedia.org/wiki/C_connector

author: OmegaHyperion
author_rank: Contributor
timestamp: October 05, 2019, 12:02:11 pm
content: Though they do look similar, the connector in question is smaller then BNC, not larger. So its certainly not a type C connector. But thanks for the reply anyway

author: MagicSmoker
author_rank: Super Contributor
timestamp: October 05, 2019, 12:39:15 pm
content: I'll play connector bingo... Looks like the manufacturer is Kings, not King, and if so they were acquired by Winchester Interconnect:https://www.winconn.com/brand/kings-win/Dunno which connector this is, but you might try poking around their military/aerospace offerings, since those are the only market segments that will typically tolerate such shenanigans as non-standard RF connectors with non-standard impedances.

author: FransW
author_rank: Frequent Contributor
timestamp: October 05, 2019, 02:35:40 pm
content: I did not see a ref.Maybe this one?

author: Twoflower
author_rank: Frequent Contributor
timestamp: October 05, 2019, 02:56:01 pm
content: For some reason I had another look to the pictures. I might change my mind to about the 45Ohm. It seems that the imprint is more like 45000.But MagicSmoker is probably right, as the visible part of the socket imprint says 'NGS' which is likely the end of KINGS. But that's only a guess.

author: FransW
author_rank: Frequent Contributor
timestamp: October 05, 2019, 03:05:13 pm
content: It certainly is Kings.However: Kings products are now under the Kings-Win® brand from Winchester Interconnect.™and the manufacturing program was updated.Datasheet Kings mini-BNC:https://www.winconn.com/wp-content/uploads/2015/12/bnc_mini.pdf

author: xmo
author_rank: Regular Contributor
timestamp: October 05, 2019, 07:26:09 pm
content: BSM

author: OmegaHyperion
author_rank: Contributor
timestamp: October 05, 2019, 09:02:02 pm
content: The manufacture of the socket is indeed Kings, ill have a poke around their site, but last time i did so, it didn't turn up much.The connector with 45 visible is a Amphenol 45000 connector, but looking it up, i only found an ebay listing, but not a specification. The overwhelming amount of connectors are Kings though, thus Amphenol is an outlier.

author: xmo
author_rank: Regular Contributor
timestamp: October 05, 2019, 09:47:57 pm
content: BSM = Kings KM series

author: OmegaHyperion
author_rank: Contributor
timestamp: October 07, 2019, 07:04:06 pm
content: Got a reply from the new owners of kings, and they stated that the connector mentioned here had already been discontinued when they acquired kings. It was also never replaced with anything new.At least i know Amphenol made them as well, so ill write their remains as well.So the connector type is still basically unidentified. I did find it mentioned as Mini Bayonet connector in the documentation of my machine, but it dose not produce much info either.

author: Twoflower
author_rank: Frequent Contributor
timestamp: October 07, 2019, 07:06:04 pm
content: xmo gave the right answer. Even with the little he wrote:http://w140.com/tekwiki/wiki/BSM_connector