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Re: 45 rpm record groove depth
Does anyone out there in listserve land happen to either
know the depth of a 45 rpm microgroove or know where I can
find this information? This question was posed to us by a
researcher, and we haven't been able to track it down.
Width yes. Depth no.
Chuck Howell, CA
Curator, Library of American Broadcasting
University of Maryland
College Park, MD 20742