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Screws for Cambridge Audio R50 terminals?

 
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ColinH
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Joined: 11 May 2011
Posts: 2

PostPosted: Wed May 11, 2011 1:30 pm    Post subject: Screws for Cambridge Audio R50 terminals? Reply with quote

Hi,

I have just bought a pair of R50's on eBay for sentimental reasons (my dad owned Cambridge in the 70's but for some reason our family pairs have disappeared).

On the back, they have screw fittings without screws. If I recall correctly, they were quite short (1/4") and fell out quite easily. Modern metric screws/machine screws don't fit, any idea what size they would be and/or where I could get some?

Contemplating replacing with binding posts, which I think will fit with a bit of bodging.


thanks in advance
Colin Hammond (jr)
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ColinR
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Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire

PostPosted: Wed May 11, 2011 1:46 pm    Post subject: Reply with quote

The screws are Imperial (Wharfedale used the same thread) so you'll have to root around somewhere like the NVCF this Sunday Very Happy or a Tonbridge Audiojumble, a Radio Rally or possibly Jerry Bloomfield at Falcon Acoustics might have some terminal strips in his "junk" collection - Malcolm Jones certainly did.

Alternatively the the terminal plate covers a 0.5" diameter hole, so you can unsolder the wires and fit binding posts (the wires are long enough) and put a cork in the hole Shocked .

Round binding post terminal plates could be used with a suitably sized tank cutter, more common rectangular will require higher levels of woodworking skills.

Until then you'll have to use matches/toothpicks to keep the wires secure Smile .
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ColinH
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PostPosted: Wed May 11, 2011 2:34 pm    Post subject: Reply with quote

Thanks Colin, I'll probably use slightly under size Metric screws in the interim
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