Unknown Z80 CPU board and backplane ID anyone?
bobsmithofd at gmail.com
Tue Jul 31 11:20:59 CDT 2018
Varian made a bunch of specialized systems/Devices used in Lab environments.
On Mon, Jul 30, 2018 at 9:45 PM, Rob Doyle via cctalk
<cctalk at classiccmp.org> wrote:
> 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.
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