In article , Doug Duncan
wrote:
Serge Auckland wrote:
Doug Duncan wrote:
Does anybody know where I might obtain a pair of the non reversible
speaker plugs which used to be used in sixties hifi?


If you email me your postal address I'll send you a couple of DIN
'speaker plugs with my compliments. I only have one cover, however but
it's better than poking the cables in the socket.

S.

Thanks very much but we are not talking about din plugs. The things I'm
trying to locate have two circular section pins one of which is larger
than the other. The centres of the pins are approx 10mm apart.

So far as I know, the plugs of this type went 'obsolete' many years ago. As
others have suggested, you may be able to find some on eBay or somewhere
else second-hand.

Alternatively, you can use a pair of appropriately sized 'split pins' as
the probes to connect wires into these sockets. Indeed, at one time
Armstrong used to supply individual pins for this kind of purpose. Alas, it
is a bit fiddly, but can be made to work OK. Afraid that at the time Ted
Rule designed these units he wasn't thinking people would be still using
them around a half-century later! :-)

Another alternative is some metal shim, rolled into a tubular 'swiss roll'
to which you have soldered some wire. Roll it and put into the socket, then
allow it to 'unroll' to make contact.

Alas, both the above are bodges. :-/

Sorry I can't suggest a supplier. If you find one, let me know and I can
mention them on the 'Armstrong' webpages as this question does crop up
every now and then! I would also buy a few for my own occasional use.

Slainte,

Jim

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