30 Jul
2007
30 Jul
'07
5:24 p.m.
On 7/30/07, Rick Bensene <rickb at bensene.com> wrote:
It's a Deitzgen ESR-1. As your page says,
it's an OEM version of the
Casio fx-1. Casio sold the machines to Deitzgen, who just put their own
modem/name/seria number tags on them, and was responsible for marketing
and maintaining the within their marketplace. Sperry-Remington also
OEM'd the Casio fx-1, and sold it under their brand name as the 1259S.
Quite an interestng machine. It is essentially a basic four function
calculator with square root, that added ROM-based "programs" using the
besic functions of the machine to carry out the scientific functions.
Some of the functions are very slow as a resylt. You can learn more by
reading
My exhibit on the Casio fx-1 at
http://oldcalculatormuseum.com/casiofx1.html
Thanks for the info, Rick. I had found your page via google once I
got a private reply telling me it looked like the FX-1. I'm guessing
you saw the Flickr page after I updated it :) I wasn't sure if it
was a true ESR-1, since the ESR pics I found showed it with a
different color face, but I figured that was just a cosmetic change.
Now to get that HP nixie voltmeter working...