[Jukebox-list] Marginally OT - Non reversible speaker plugs

[Doug Duncan]

Can anybody tell me where I can buy the old style non reversible speaker 
plugs that used to be used in valve (tube) amplifiers. Preferably in the 
UK but elsewhere if not. I've tried places like Maplin and a selection 
of non chain backstreet places but the consensus is they have not been 
available since the sixties

The kind of thing I mean is the type where there are two pins , one 
larger than the other

I have an Armstrong 221 that would like to press into service with the 
PC and the monitors whilst the normal amp is being fixed (which may take 
a while) and while I can use matchsticks it doesn't seem to be the 
standard we aim for.

Thanks for any help which can be given.

Best Regards,

Doug