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-------- Original Message -------- From: Ron Roscoe <[log in to unmask]> > I've heard that a lot of the later Edison DD's and especially the electrically > recorded DD's, were actually recorded at 78.26 rpm. Can anyone verify this? > Ron Roscoe Actually it was the Edison lateral discs which according to George Frow were supposedly 78.8 and the discs still at 80. About 15 or 20 years ago Joe Pengelly completed his long quest and completed a trio of Edison records of the same take of the same song, a copy on cylinder, Diamond Disc. and Lateral. They did not match at the proper speeds of 160, 80, and 78.8. DD 52639-R Pagan Love Song has to play at 81.4 to match the Lateral 14051-R at 78.8. Or if the DD is played at 80.0 the Lateral matches at 77.4. George did not include the cylinder data in this page 234 in "Edison Disc Phonographs", and Joe did not have his data when I visited him last year. We need to dig up his ARSC presentation or perhaps an article if he published. Mike Biel [log in to unmask]