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

[Michael Biel]

There was a demo disc sold in Selfriges in the 30s but it was not a
Baird production.  The label is one of the items in the header of Don
McLean's website.

Mike Biel  mbiel at mbiel.co,


-------- Original Message --------
From: David Breneman <david_breneman at yahoo.com>
--- 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.