Karl Miller wrote:
>
>Was not Irish factory seconds of Scotch? And then there was the company
>that recycled Ampex which I believe they said had been used by the
>government?
>
>Did not IBM in the early years use tape from 3M?
>
>I don't recall that the Magnetic Recording Handbook has much history in
>it...my copy is at home.
>
>Does anyone know of a published history which would trace all of the
>various manfacturers and brands?
>
>Karl

Hi all,
sorry for the late posting. On the now defunct(?) 
site Dead Recording Media there was an article by 
David Morton about the company Orradio 
Industries. Started by J. H. Orr in 1949, they 
manufactured magnetic tape sold under the Irish 
brand. When Ampex started making video recorders 
in 1956 they commisioned Orr to make video tape, 
and bought into the company, taking it over in 
1960. This was to become the magnetic tape 
division of Ampex, and the Irish brand 
disappeared shortly thereafter.

Greetings,
Tommy Sjöberg
Stockholm