The Museum of HP Calculators

HP Forum Archive 14

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Interesting HP41 module on ebay
Message #1 Posted by Tom (UK) on 21 July 2004, 7:50 a.m.

See page at:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=414&item=6109186257&rd=1&ssPageName=WDVW

I wonder if it was meant to be an electronic version of an enigma type machine?

I have not seen a removable rubber overlay that is shown for the HP41.

Please note that I have no connection with this item.

      
Re: Interesting HP41 module on ebay
Message #2 Posted by Matthias on 21 July 2004, 8:10 a.m.,
in response to message #1 by Tom (UK)

I contacted the seller and as a remark: He sells the EPROM with the overlay I think. Im not shure if he sells also the HHP EPROM box!

Happy bidding

      
Re: Interesting HP41 module on ebay - comments about 41 & crypto..
Message #3 Posted by Bill Wiese on 21 July 2004, 1:05 p.m.,
in response to message #1 by Tom (UK)

Some time ago I heard persistent rumors that during early 80s some crypto gear disguised as HP calculators were supplied to some Soviet defense scientists/engineers who spied for US CIA/DIA - a guy like A.G. Tolkachev comes to mind (eventually caught by KGB & shot circa 1985?). (There was apparently another small radio device that allowed shorter, secure messages to be conveyed up to 1/4mi to avoid face-to-face agent contact and was separate from this.)

I had heard somewhere it was a 41 (after all, it was alphanumeric!) but even if that was wrong, other hacked numeric-only calcs that could deal with something like 5-digit code groups could work too.

An HP sci calc at that time would be a piece of equipment that although uncommon and pricey would not be odd or out of ordinary and at the worst could be 'explainable' in an investigation as a blackmarket purchase but would be tolerable for a senior guy...

Bill W San Jose CA


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