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Odd old plug #210524 07/07/13 06:49 AM
Joined: Dec 2001
Posts: 2,488
T
Texas_Ranger Offline OP
Member
Yesterday I helped clear out an old DIYer's workshop and found a plug I couldn't make sense of. It's a rather small angle plug (small by European standards), the face is about 3.5 cm square. The 4 round pins are very thin, only around 2 mm and maybe 10 mm long. There are hardly any markings, but the screw terminals inside are marked R, Y, GN, BK. The only interpretation that comes to my mind is red, yellow, green and black, which sounds like phone wiring. The screws look decidedly un-metric, or if they are, the number of threads is non-standard (coarser than the average M3). If plugged in with the cable exiting at the bottom, the top pins are spaced closer together than the bottom ones, i.e. the plug is polarised.

Any ideas what that could be? I can take pictures and exact measurements later.

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Re: Odd old plug [Re: Texas_Ranger] #210525 07/07/13 11:11 AM
Joined: Apr 2002
Posts: 7,227
HotLine1 Offline
Member
Sounds like an old telco (phone) jack.


John
Re: Odd old plug [Re: Texas_Ranger] #210526 07/07/13 11:14 AM
Joined: Feb 2004
Posts: 1,437
Lostazhell Offline
Member
Sounds exactly like our old telephone plugs here in the states...

[Linked Image from smcelectronics.com]

Re: Odd old plug [Re: Texas_Ranger] #210529 07/07/13 01:17 PM
Joined: Jan 2005
Posts: 5,316
renosteinke Offline
Cat Servant
Member
I agree -I remember those plugs in a round form, without the jack shown in the picture.

Re: Odd old plug [Re: Texas_Ranger] #210533 07/07/13 04:14 PM
Joined: Nov 2005
Posts: 821
J
JoeTestingEngr Offline
Member
Yep, Red and green were Tip and Ring. Black and yellow were often hooked to a small wall transformer to illuminate the dial of a "Princess" telephone.

Re: Odd old plug [Re: Lostazhell] #210559 07/09/13 08:31 AM
Joined: Dec 2001
Posts: 2,488
T
Texas_Ranger Offline OP
Member
Originally Posted by Lostazhell
Sounds exactly like our old telephone plugs here in the states...

[Linked Image from smcelectronics.com]

Exactly, that's it! Wonder how that one made its way to Europe. Maybe someone brought a phone over from the states and then changed the plug to make it work here.


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