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ARSCLIST April 2013
Subject:
Re: Edison "tuning" disc ?
From:
Dan Nelson <[log in to unmask]>
Reply-To:
Association for Recorded Sound Discussion List <[log in to unmask]>
Date:
Sun, 14 Apr 2013 22:34:40 -0700
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What in the world is this Edison "tuning disc" #3342B21 ? It sounds like 800hz tone but they didnt have tone generators back then did they? maybe tuning fork over and over. Many thanks for info on what it was for and how it was made dnw
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