[78-L] Grooved video discs 78rpm resp. 1500rpm (''mechanical TV'')

[neechevoneeznayou at gmail.com]

According to that web site, only 6 records are known to exist and 2 of 
them are pressings of the same content.

joe salerno

On 10/11/2012 3:29 PM, David Breneman wrote:
> --- On Thu, 10/11/12, Benno Häupl <goldenbough at arcor.de> wrote:
>
>
>> Scottish inventor John Logie Baird devolped a system using
>> grooved discs
>> that could reproduce moving pictures of 30 lines. Has
>> anybody here seen
>> (or own) a grooved video disc made according to this
>> standard (around 1928)?
>
> As far as I know, this product never got beyond the
> prototype phase.  There are only a few known to exist.
>
>
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-- 
Joe Salerno