S-100 power supply voltage ranges

M H Stein dm561 at torfree.net
Fri Mar 6 04:26:41 CST 2009

As a matter of fact Cromemco's later systems easily ran 68020s at 16.7 MHz on 
their S-100 / IEEE696 bus backplanes.

Date: Thu, 5 Mar 2009 19:21:53 -0800 (PST)
From: Michael Hart <imsaicollector at yahoo.com>
Subject: RE: S-100 power supply voltage ranges

CompuPro and Cromenco were state of the ART IEEE 696.
The back place was supposed to be able to handle higher than a wopping 10MHz

Michael Hart

Trader Kiosk


michael at traderkiosk.com

imsaicollector at yahoo.com

I, the unwilling, was led by the unqualified, to do the unbelievable for so long with so little, that I attempted the impossible with nothing......"

--- On Thu, 3/5/09, Chuck Guzis <cclist at sydex.com> wrote:
From: Chuck Guzis <cclist at sydex.com>
Subject: RE: S-100 power supply voltage ranges
To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Date: Thursday, March 5, 2009, 10:11 PM

On 5 Mar 2009 at 18:56, Fred Cisin wrote:

> But, . . .
> would the standard, even early versions, such as presented by George
> Morrow and Howard Fullme at the West Coast Computer Faire, really embody
> the SPIRIT of S100 without at least a few non-standard signals?

Heh.  Was it the SOL-20 that tied the Data In and Data Out lines 

Would you consider the late Godbout/Compupro boxes to be the height 
of S-100 development?


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