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For Sale: Edison DD Tuning Disc, Resin PICTURE DISC! $40
Posted: Wed Apr 11, 2018 2:39 pm
by donniej
One of the first ever DD picture discs. This is the tuning disc, which itself is rather difficult to find.
$40 + $5 shipping in the USA.
Re: For Sale: Edison DD Tuning Disc, Resin PICTURE DISC! $40
Posted: Mon Apr 16, 2018 1:14 pm
by EdisonWizard
Just curious, what is a tuning disc?
Re: For Sale: Edison DD Tuning Disc, Resin PICTURE DISC! $40
Posted: Mon Apr 16, 2018 2:57 pm
by estott
EdisonWizard wrote:Just curious, what is a tuning disc?
A disc with a continuous note- when matched to the appropriate pitch pipe it was a way of adjusting turntable speed