Monroe electromechanical calculators

[Rick Bensene]

Check out Ernie Jorgensen's Office Machine Americana website.  He has
service and operating manuals (reproductions) for many old mechanical
calculators.   http://users.lewiston.com/ejorgens/office/index.htm
I see that he does have some materials for the 8N-series calculators.

Yes, these machines are amazingly complex.  I seriously wonder if the
mechanical engineering talent exists today to design such a machine from
scratch.  

Best wishes,
Rick Bensene
The Old Calculator Web Museum
Beavercreek, Oregon
http://oldcalculatormuseum.com

> [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Jules Richardson
> Sent: Thursday, June 16, 2005 5:43 AM
> Subject: Monroe electromechanical calculators
> 
> 
> I brought one of these home from Bletchley last weekend - 
> turns out they're quite addictive little things :-)  It's a 
> Monromatic 8N-3-213 which was marked as broken - I thought 
> I'd see if there was anything obviously wrong inside, plus of 
> course I was curious as to what the innards of such a machine 
> looked like.
> 
> Question - does anyone have service information for these 
> machines (yeah, right!) or useful tips on things to check over?
> 
> 
> Can't say I've ever seen such a complicated thing. Electronic 
> circuits don't even come close in complexity :-) I don't 
> think I'd be up for a complete stripdown and rebuild; I'd 
> never get it all back together.
>