Re: Unknown Z80 CPU board and backplane ID anyone?

[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 
that will turn up unexpectedly and I’ll think ‘I’ve seen that board/logo 
before’ then spend ages trying to work out where I’d seen it :)


> 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 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.
>>> 
>> 
>> 

-- 
adrian/witchy
Owner of Binary Dinosaurs, the UK's biggest home computer collection?
t: @binarydinosaursf: facebook.com/binarydinosaurs
w: www.binarydinosaurs.co.uk

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 Medical Systems Inc., Varian Semiconductor Equipment Associates Inc., 
and Varian, Inc. 
==
The Card Edge connectors on motherboard are Sullins Connector Solutions, Inc.
http://sullinscorp.com/catalog/

MPS-0125-50-DW-5H
Edge Card Catalog
http://www.sullinscorp.com/pdfs/edgcards-catalog.pdf

Card Edge Connector, 100 Contact(s), 2 Row(s), Straight, 0.125 inch Pitch, 
.025” Square Wire Wrap - .610” Insulator Height, Blue Insulator,
Raised with .125” Clearance Holes, .190” Contact Length for .025” Square.
===
For reference purposes, S-100 motherboards use Sullins EBA50DCSD .
https://www.digikey.com/product-detail/en/sullins-connector-solutions/EBA50DCSD/S3288-ND/927240

Greg
chicago

Sent from iPad Air

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 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.
>>
>
>

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 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.

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 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.
> 
> Those 11 slots are 100 pins, surely - the same number as the CPU board has.


Hehehehe, I looked at the silkscreen on the lower right pin and read ’66’ not 
’99’ XD. I’ve been up since 6am which is clearly having an effect.

-- 
adrian/witchy
Owner of Binary Dinosaurs, the UK's biggest home computer collection?
t: @binarydinosaursf: facebook.com/binarydinosaurs
w: www.binarydinosaurs.co.uk

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 that aren’t all identical implying usage for different
cards in those locations. Voltages are +5/-5/+12V.


Those 11 slots are 100 pins, surely - the same number as the CPU board has.

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 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.

Pics:

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-1.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-2.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-3.jpg 


My duckduckgo-fu has let me down.

Cheers!

Re: Unknown Z80 CPU board and backplane ID anyone?

[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 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.
>
> Pics:
>
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30.jpg <
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30.jpg>
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-1.jpg <
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-1.jpg>
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-2.jpg <
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-2.jpg>
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-3.jpg <
> http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-3.jpg>
>
> My duckduckgo-fu has let me down.
>
> Cheers!
>
> --
> adrian/witchy
> Owner of Binary Dinosaurs, the UK's biggest home computer collection?
> t: @binarydinosaursf: facebook.com/binarydinosaurs
> w: www.binarydinosaurs.co.uk
>
>
>
>

Unknown Z80 CPU board and backplane ID anyone?

[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 cards in those locations. 
Voltages are +5/-5/+12V.

Pics:

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-1.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-2.jpg 

http://www.binarydinosaurs.co.uk/tynemouthsw_2018-Jul-30-3.jpg 


My duckduckgo-fu has let me down.

Cheers!

-- 
adrian/witchy
Owner of Binary Dinosaurs, the UK's biggest home computer collection?
t: @binarydinosaursf: facebook.com/binarydinosaurs
w: www.binarydinosaurs.co.uk