Unknown Z80 CPU board and backplane ID anyone?

Rob Doyle radioengr at gmail.com
Mon Jul 30 20:45:02 CDT 2018

That logo is Varian and Associates.



On 7/30/2018 10:27 AM, Adrian Graham via cctalk wrote:
> Hi folks,
> A friend of mine in the UK is looking for any info on the following boards. The CPU board is marked ‘VA 03-907023-00’ and features a Z80 with 16K RAM and an 18.432MHz crystal. The backplane is also VA and has 11 132-pin slots that aren’t all identical implying usage for different cards in those locations. Voltages are +5/-5/+12V.

More information about the cctech mailing list