Re: Unknown Z80 CPU board and backplane ID anyone?

2018-08-01 Thread Adrian Graham via cctalk
> On 31 Jul 2018, at 17:20, Bob Smith via cctalk wrote: > > Varian made a bunch of specialized systems/Devices used in Lab environments. Thanks to everyone who’s replied! It’s a pity we don’t have a ROM board or anything that might identify these boards further. It’s one of those things

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-31 Thread Gregory Beat via cctalk
Agree about Varian trademark. In 1937 the Varian brothers developed the Klystron tube. In 1965 Eitel-McCullough (EIMAC) merged with Varian Associates, but in 1995 the EIMAC division was “spun off” (now part of CPI). In 1999, the company was reorganized into three distinct businesses: Varian

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-31 Thread Bob Smith via cctalk
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 wrote: > That logo is Varian and Associates. > > http://www.logobook.com/logo/varian-and-associates/ > > Rob. > > > On 7/30/2018 10:27 AM, Adrian Graham via cctalk

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread Rob Doyle via cctalk
That logo is Varian and Associates. http://www.logobook.com/logo/varian-and-associates/ Rob. 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

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread Adrian Graham via cctalk
> On 30 Jul 2018, at 23:50, Jules Richardson via cctalk > wrote: > > On 07/30/2018 12:27 PM, 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

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread Jules Richardson via cctalk
On 07/30/2018 12:27 PM, 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

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread Mike Niswonger via cctalk
Don't know the system, but the logo is "Varian Associates"...     -- Mike Niswonger On 07/30/2018 12:27 PM, 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

Re: Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread systems_glitch via cctalk
403 Forbidden. Thanks, Jonathan On Mon, Jul 30, 2018 at 1:27 PM, Adrian Graham via cctalk < cctalk@classiccmp.org> 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

Unknown Z80 CPU board and backplane ID anyone?

2018-07-30 Thread Adrian Graham via cctalk
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