[78-L] Am I Seeing Things???

Don Chichester dnjchi78 at live.com
Sat Jan 1 09:41:57 PST 2011


I guess we're both right.  8>)
 
Don
 
> Date: Sat, 1 Jan 2011 18:02:30 +0100
> From: saag at telia.com
> To: 78-l at klickitat.78online.com
> Subject: Re: [78-L] Am I Seeing Things???
> 
> Here's what Edison says in his diary on July 18 1877:
> 
> "Just tried experiment with diaphragm having an embossing point and held 
> against paraffin paper moving rapidly. The speaking vibrations are 
> indented nicely, and there's no doubt that I shall be able to store up 
> and reproduce automatically at any future time the human voice perfectly"."
> (Quote from Gelatt)
> So he actually did exeperiment with paper, but for how long?
> According to Gelatt his was still busy working on his high speed 
> telegraph in the summer of 1877, so the step from paper to tinfoil for 
> sound reproduction was probably very short, perhaps less than a month.
> Kristjan
> 
> 
> Don Chichester wrote: 2011-01-01 16:59:
> >
> > IIRC, Edison was working with a strip of paper onto which telegraph impulses were burned, and could be re-played for transmission. It was the idea of 'storage of sound impulses' that started Edison's experiment with tin foil. The writer suggests that he started with paper, and worked on the concept for a year. All info I have is that he tried tinfoil in August of 1877. It worked the first time! It was demonstrated for Scientific America in December 1877. No year of research.
> >
> > Don
> >
> >> Date: Sat, 1 Jan 2011 16:27:35 +0100
> >> From: saag at telia.com
> >> To: 78-l at klickitat.78online.com
> >> Subject: Re: [78-L] Am I Seeing Things???
> >>
> >> Don,
> >> AFAIK Edison actually started his sound experiments with "moving paper",
> >> just like in his telegraph.
> >> And, as for Berliner, the text never mentions lateral recording. It says
> >> Berliner's stylus "cut a spiral groove", compared to the phonograph
> >> needle that "moved up and down in vertical cut recording format".
> >> The guy misses that both cuts are spirals, although the lateral cut is
> >> modulated sideways. But he's probably aware of the difference between
> >> the hill-and-dale cut and the lateral.
> >> Kristjan
> >>
> >>
> >>
> >> Don Chichester wrote: 2011-01-01 16:14:
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> Another list recommended this site: http://www.videointerchange.com/audio_history.htm#Open
> >>>
> >>> I read a bit of it, and saw something odd. For instance, Edison first used paper for his phonograph, then the staff worked a year before settling on tinfoil....
> >>>
> >>> Or, Berliner developed the flat disc which recorded laterally and vertically....
> >>>
> >>> Am I seeing things????
> >>>
> >>> Don
> >>>
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