donner analog computer

From: Doug Coward <>
Date: Tue Aug 19 15:21:01 2003

  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 Coward
_at_ home in Poulsbo, WA

Analog Computer Online Museum and History Center
Received on Tue Aug 19 2003 - 15:21:01 BST

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