1
It's an 8-pin DIN plug - weird and wonderful old stuff.
I could only guess at what the pinout might be, as there were at least 2 variants, 8C and 8U.
You can still get these at any decent "radio spares" type store.
There are a few of the large concerns in the UK; Farnell, RS etc. I found this list from which this one looks reasonably promising, but if you have a local equivalent store [warehouse], I'd take the old phones along with you and get them to figure out the pinout while you're there.
The thing about DIN plugs is their component similarity/replicability, so manufacturing is relatively simple.
The barrels, strain relief & even the pins are all identical. The only thing that changes is the face-plate [highlighted]… and even then some faces have more holes than they put pins through so you can use the same plate for many pin-counts.
Would I be able to get a DIN-8 to male P2(TRS) adapter? Will it work? I need both functionalities (audio and microphone).
Cannot find any DIN8 headphone (as in the image) here in my country. So I thought of using a DIN8 -> P2 adapter and then use a normal headphone instead – renanAlmeida828 – 2019-12-09T13:09:34.830
2I'm almost certain you'd have to get cabling made up - no-one uses that stuff any more ;-) A bigger concern might be impedances. Again, I'm afraid I've no clue what those old structures used - I'd definitely take it along to a radio spares shop or a TV/audio engineer & get them to measure everything. – Tetsujin – 2019-12-09T13:15:44.583
3That's a very old DIN plug. – Mr Lister – 2019-12-09T12:35:06.707
1
Looks like a DIN-8 connector. https://console5.com/store/din-connector-plug-8-pin-c-style-270-in-line-male-solder-cup-din8.html
– JakeGould – 2019-12-09T12:39:56.0501Thank you MrLister and JakeGould , I was looking for XLRs variants. It is for a old and very unique audiology equipment. Need to replace the headphones. Thank you! – renanAlmeida828 – 2019-12-09T12:44:51.073
DIN & XLR aren't interchangeable - unless you mean to make up your own cable. – Tetsujin – 2019-12-09T12:53:21.673
@Tetsujin I think I expressed myself wrong. I meant that I was searching on google as a XLR variant. Did not know that these DIN pins existed. I do not need them to be XLR. Thanks for the comment :) – renanAlmeida828 – 2019-12-09T13:07:22.743
@MrLister : It looks quite similar to PS2 connector,can you tell me how to differentiate it from PS2? – Valay_17 – 2019-12-10T01:23:19.730
1
@Valay_17 They differ in size. The outer diameter of the DIN connector was 13.5 mm, the PS/2 connector 9.5 mm. They do look alike, because PS/2 is in fact a specialisation of Mini DIN!
– Mr Lister – 2019-12-10T20:20:49.237@MrLister : Thank you for explaining, also the arrangement of the pins would differ if I am not wrong, right? – Valay_17 – 2019-12-11T00:58:19.210
@Valay_17 The Wikipedia pages I linked to have drawings of the different arrangements. – Mr Lister – 2019-12-11T08:04:40.563
@MrLister : Thank you – Valay_17 – 2019-12-11T08:51:57.597