Possible Corvus IBM XT Mirror?

Steven Hirsch snhirsch at gmail.com
Tue Apr 28 06:38:44 CDT 2009

On Mon, 27 Apr 2009, Andrew Lynch wrote:

> Hi!  I recently obtained a "mystery" IBM PC board.  It has a Z80 CPU, two
> CTCs, 8K of SRAM, and a bunch of 74LS logic.  I *suspect* this board is one
> of those VCR backup boards from the early 1980's.

A few years back I had an Alpha Micro VCR backup board, but could never 
find software or docs for it.  Sellam ended up buying it for one of his 
restoration projects.

I still have a "no name" VCR adapter somewhere.  IIRC, the manufacturer 
was Russian.


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