According to Frow, _Edison Disc Phonographs_ p 88, the Needle Records were designed to play at 78.8 rpm, and I have a suspicion that the post 19025-matrix DDs were probably recorded at that as well. The factory recommendation of 79 rpm would therefore be a compromise for non-Edison 78s and earlier 80 rpm DDs, but effectively correct for contemporary Edison product. Philip ________________________________________ From: [email protected] [[email protected]] On Behalf Of Bruce Mercer [[email protected]] Sent: Thursday, March 17, 2011 3:02 PM To: Antique Phonograph List Subject: Re: [Phono-L] [phonolist] 5700 series Blue Amberols
Thanks for that information and the matrix number. Both my C-1 and C-2 have the same speed control knobs. It should be an easy thing to dial back the speed indicator on the marked backplate for those late DD and Needle Cuts to obtain an accurate 78rpm. I notice in the factory manual that they recommended setting it at a comprimise of 79 rpm if primarily playing DD. I doubt the average consumer of the day couldn't tell the difference one way or the other. While on the subject of these machines, I'd like to know if anyone else that has a C-1 or C-2 switches OUT the filter. It vastly overfilters the DD on either machine. I rarely switch it IN. Bruce ----- Original Message ----- From: "Philip Carli" <[email protected]> To: "Antique Phonograph List" <[email protected]> Sent: Wednesday, March 16, 2011 10:38 AM Subject: Re: [Phono-L] [phonolist] 5700 series Blue Amberols Possibly for new owners of the C-1 and C-2 Edison radio/phonographs, which were capable of playing both lateral and vertical records by just flipping the stylus? -- one less step for new Edison owners to consider? -- And how late are we talking on Diamond Discs being at 78? The Goldman Band discs in the 52630s play at pitch at 80? I have 52650,a Frankie Marvin disc, but I haven't played it in a long time -- might check it -- Philip ________________________________________ From: [email protected] [[email protected]] On Behalf Of Bill Taney [[email protected]] Sent: Wednesday, March 16, 2011 9:33 AM To: [email protected]; Phono-l Subject: Re: [Phono-L] [phonolist] 5700 series Blue Amberols Why did they record the final diamond disc's at 78RPM? Seems rather odd decision since existing owners would have to adjust the speed of their machines for these records then adjust back for any of the previous 15 yr + worth of records. Bill From: Steven Medved <[email protected]> Reply-To: <[email protected]> Date: Wed, 16 Mar 2011 09:22:28 -0400 To: Phono-l <[email protected]>, phonolist <[email protected]> Subject: [phonolist] 5700 series Blue Amberols Hello lucky owners, How do these sound? Has anyone heard them played with the Diamond D? I recently rebuilt one with a new stylus, the diaphragm was still good. Even without the extra weight it sounds better so I assume the final Diamond C with the weight from the same casting as the Diamond D also sounds better. I played an acoustic dub of an electrically recorded DD and there is a difference. Ron, the final DD records were recorded at 78 rpm so what was done when they were dubbed to BA's? 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