[Phono-L] Edison's A-250 DD

[Bruce Mercer]

That's interesting to know, thanks. Of course all of the four minute records 
were recorded at 200 tpi. Still an achievement that early in the game. The 
1899 cylinder I speak of was 450 tpi. (I am going to check this out for 
certainty as that number is from memory) If  I'm wrong on that number I will 
repost the correct tpi.
Bruce M


>
> In a message dated 10/18/2009 12:59:10 A.M. Eastern Daylight Time,
> maxbud12 at wowway.com writes:
>
> T.A.s  work on microgroove recordings
> can be noted as early as 1899. (cylinder of  course)
>
>
>
> -----------------
> Looking at our re-issued Program to the Electric Club (delivered by  Ezra
> Gilliland on May 19, 1888), I see, on p. 9, a reference to 'brown wax'
> cylinders recorded at 200 tpi.
>
> Allen
> _www.phonobooks.com_ (http://www.phonobooks.com)
>
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