donner analog computer

From: ed sharpe <>
Date: Wed Aug 20 01:48:54 2003

Doug, Kudos on the Korn complements, could not think of a better source of

the 3500 portable you have pictured is like ours except..... it is all
disassembled in a rack mount configuration!

tried to find the manual online, do you have any plans to PDF any of this

Nice site! plan to spend some more time there!

Thanks Ed Sharpe archivist for SMECC

Please check our web site at
to see other engineering fields, communications and computation stuff we
buy, and by all means when in Arizona drop in and see us.


 coury house / smecc
5802 w palmaire ave
glendale az 85301

----- Original Message -----
From: "Doug Coward" <>
To: <>
Sent: Tuesday, August 19, 2003 11:46 AM
Subject: Re: donner analog computer

> I sent this reply a couple of days ago but it never
> appeared in the digest so I can only assume that
> it went into the univeral bit bucket. Here it is again.
> ======== Resending ==================
> Ed sharpe wrote:
> > Please see the Donner analog computer at:
> >
> > we would like to get enough stuff and some docs to get it operational.
> I have the "Instruction Manual" that includes operation, servicing,
> part lists, and schematics.
> Vintage Computer Festival wrote:
> >Ed, what model number is this?
> The top three panels make up a rack mounted model 3500.
> I can't see enough detail of the bottom two panels to tell
> for sure, probably some kind of accessories.
> Ed sharpe wrote:
> >it says donner 3500 as I remember. so it is earlier than a
> >sysdon donner, although I remember the instruction manual
> >( lost probably 20 years ago during a computer exchange inc.
> >warehouse clean out party) said sysdon donner....
> The manuals says manufactured by Donner Scientific Company
> a division of Systron-Donner Corporation.
> >what would you folks date it at?
> The manual is dated January 1960
> >I remember there was also a bag of little rectangular boxes with
> >jack tips on them that help components also. ( again missing)
> I would bet good money that the banana jacks on the patch
> panel are exactly 3/4" apart. In that case you can use a double
> banana plug as a component holder.
> >in the library here we do have a copy of the korn and korn
> >book on analog computers.
> Just about a month ago I got an email from Granino Korn
> saying how much he like my little museum.
> --Doug
> =========================================
> Doug Coward
> _at_ home in Poulsbo, WA
> Analog Computer Online Museum and History Center
> =========================================
Received on Wed Aug 20 2003 - 01:48:54 BST

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