I've heard an Edison C-2 once, though I don't know whether or not it was restored to as-new standards. I do recall that it sounded good, though. The C-1 and C-2 Edison sets used an interesting, and very unconventounal speaker, It was a Peerless electro-dynamic speaker. But, instead of having a vouce coil, wound with dozens of turns of wire, the speaker's voice coil was a single turn of copper strip, and the secondary winding of the output transformer also had a single turn. The transformer secondary was coupled to the voice coil by metal (copper?) springs, which doubled as the speaker's center suspension. To be sure, it was an unconventional speaker, but it worked. It was a high-current; low voltage device. Because of that, when the amplifier on those sets is serviced, it might be well to carefully examine the critical connections between the output transformer and the voice coil. Any resistance in that circuit will drastically reduce speaker performance.
The circuitry in those Edison amplifiers should produce as good audio as most of the other designs of the day. Other than the strange speaker, they were done to conventionally engineered. practices. > [Original Message] > From: [email protected] <[email protected]> > To: Antique Phonograph List <[email protected]> > Date: 3/21/2008 9:48:11 PM > Subject: Re: [Phono-L] Edison C2 performance > > None of my C-2 chassis give ideal performance but I have an Edison radio > with the same chassis & have connected the C-2 turntable to it and the > sound is superb. I had the repairman make the filter switcheable & never > use it. I don't find the surface noise to be excessive. All diamond > discs sound better played this way than acoustically. Strangely, some of > the acoustically recorded diamond discs such as the Prelude to FAUST have > true bass (sadly the Golden Gate Orchestra's acoustically recorded diamond > discs DO NOT exhibit this bass where one would want it most - to hear > Adrian Rollini's bass sax) & naturally the electrically recorded diamond > disc reveal both bass & highs not heard with acoustical reproduction though > the "overload" distortion on some, oddly found on later electrically > recorded dismond discs than earlier, is still quite apparent. I find the > sound quality superior to my early Brunswick Panatrope as well as my > Orthophonic Victrolas. I look forward someday to having my C-2 chassis put > in proper playing condition - the performance through the Edison radio > shows how they SHOULD sound. > > Very > truly yours, > > Jim > Cartwright > > Immor > tal Performances > > [email protected] > EarthLink Revolves Around You. > > > > [Original Message] > > From: Peter Fraser <[email protected]> > > To: Antique Phonograph List <[email protected]> > > Date: 3/21/2008 6:10:48 PM > > Subject: Re: [Phono-L] Edison C2 performance > > > > I've been meaning to ask this for some time now...how do the Edison > > electrical reproducers sound, when playing diamond discs? > > > > Sent from my iPhone > > > > -- Peter > > [email protected] > > > > On Mar 21, 2008, at 1:41 PM, "Bruce Mercer" <[email protected]> wrote: > > > > > Yes to all of the above. A C-2 I purchased some time ago had both > > > the 12"Roth and Martinelli records (among others) in the albums > > > along with a bunch of pop black with gold lettering on the labels. > > > Ha anyone ever seen a 10" classical with a gold label with black > > > lettering? Needle cuts, as far as I remember were sold from mid > > > July to mid October 1929. They were superior sounding records. > > > Bruce > > > > > > _______________________________________________ > > > Phono-L mailing list > > > http://phono-l.oldcrank.org > > _______________________________________________ > > Phono-L mailing list > > http://phono-l.oldcrank.org > > > > > > -- > > No virus found in this incoming message. > > Checked by AVG. > > Version: 7.5.519 / Virus Database: 269.21.7/1335 - Release Date: > 3/19/2008 9:54 AM > > > _______________________________________________ > Phono-L mailing list > http://phono-l.oldcrank.org
