Telephone Switching > General Switching Discussions

Looking for 40s/50s Ericsson switchboard plugs

(1/3) > >>

escuta:
Hello,

I'm wanting to replace 8 missing plugs on a 1940s or 50s Ericsson switchboard, possibly an ADE 1210. The board was assembled by "Ericsson Brasil" from Swedish parts. The plug seems shorter than US plugs that I've seen and also the British 316 "GPO" plugs, being 23mm from collar to tip. Please see the attached photo, but note that the camera was off-angle and that distance should be 23mm rather than what looks like 24mm. The diameter of the sleeve is approximately 5.5mm. 

If anyone knows where I might find these plugs, please let me know. I'm trying some of the old telephone workshops here in Brazil but so far I've had no luck.

Thank you and all the best!

RB:
That is a nice looking board.
The length of the plugs may be a problem...not sure.
Try ebay, that may be your best bet.
else, if you can find a longer, but same diameter plug, a sleeve may line it up properly???
Someone here may know more.
Good luck! :)

escuta:

--- Quote from: RB on April 20, 2020, 10:25:19 AM ---That is a nice looking board.
The length of the plugs may be a problem...not sure.
Try ebay, that may be your best bet.
else, if you can find a longer, but same diameter plug, a sleeve may line it up properly???
Someone here may know more.
Good luck! :)

--- End quote ---

Thanks RB. You may have noticed that I was here some years ago and my original post "Brazilian Ericsson switchboard" is still on this page. I've changed tack with my restoration project and resolved to start a new thread. Rather than restore the board to its former electro-mechanical glory as I'd planned (I realised I just don't have the skills for this and parts would be a problem), I am building an Arduino-based interface between the board and an Asterisk PBX system. The board will have outside lines via a SIP service registered by Asterisk and internal lines using rotary-dial analogue phones attached to a VoIP adapter/pulse-DTMF converters. Other things besides. With the help of friend on the circuitry required, I'm well advanced in this process and I'm at the point now where I need to wire everything up. Finding the 8 connectors for the remaining 4 call-answer pairs may be the biggest challenge left.

Hope someone can please help or perhaps suggest other places where I might ask about these European phone plugs.

All the best,

countryman:
Because I still need a plug for my German military phone (Amtsanschliesser) I tried this one:
http://oppermann-electronic.de/html/telefonzubehor.html
scroll down --> Nostalgie-Telefon-Stecker 6 mm... 3.83 EUR (no picture in offer)

It came today and does not fit the military phone, which needs an even longer plug. In fact what I got was a cord with 2 plugs, offered at 12.27 EUR  8)
It is longer than what you need, but the diameter is also 5.5 mm. I guess it was a standard cord for many European switchboards. The length is the same as a regular 6.3 mm (1/4") stereo phone jack, so you might try this option first, using a sleeve as RB suggested? Might it be considered to widen the hole a little?

If you want to try the link above I guess you might contact the shop directly, or I might order for you if he refuses to ship worldwide (website states he accepts paypal from international buyers). That's a small shop specialized in antique electronic parts/surplus parts.

dsk:
I'm not sure, but I may maybe help you with plugs.

Regarding Ericsson plugs  I made a field exchange many years ago. now I have got my SB22 (missing trunk pack and touch tone unit)    I could trade it for 2 of these: https://armysurpluswarehouse.com/military-issue-touch-tone-adapter-ta-955-pt-for-ta-312-field-phone/
Regarding the German WWii  I had to use some diy there too, so I took a plastic 1/4 " plug and cut a little off the plastic. Works like a charm.

I have a spare plug too, but the bakelite cylinder was gone so a blue plastic from a pen does the job. and the threaded brass ring had to be soldered, but I have it and its working if you are interested. 

Shipping costs may kill it all. 

dsk

Navigation

[0] Message Index

[#] Next page

Go to full version