One of a collection of oldcalcs algorithms from the days when calculators were simple and algorithms were clever. CASC 008: exponential (e^x) For: calculator...
Bob Patton
patton@...
Sep 7, 2003 10:42 pm
464
Hi! I have found very interesting site concerning history of Russian calculators development. 1. Assembly hall. Serial production of calculators. The Kristal...
Sergei Frolov
frs@...
Sep 12, 2003 4:35 am
465
Dear Ray, Thanks for the article on the “Recollections of the Walther Company’s Venture into Electronics” – It is excellent! I posted it into the...
James Redin
james@...
Sep 17, 2003 5:57 am
466
Dear friends, I forgot to include the address for Ray’s article: http://www.dotpoint.com/xnumber/e_walther.htm Best regards, James ... From: James Redin...
James Redin
james@...
Sep 17, 2003 2:38 pm
467
(I'm quoting fully for Dr. Williams' benefit.) ... ============ Reply ============= Sergei, Many thanks for calling our attention to that Web site. It would be...
Hello! In old time, the USSR have stolen some calculator ICs topology. For example, Casio FX-2500 is the Elektronika MK-51 ( ...
Sergei Frolov
frs@...
Oct 14, 2003 2:12 pm
469
Dear friends, I received some pictures of a Monroe 600 calculator that instead of keys has a matrix of solenoids. I assume that the idea was to have some...
James Redin
james@...
Oct 17, 2003 7:53 pm
470
FYI http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3053701314&category=3294&rd=1 Mike Blum...
The Friden Computyper had an STW (or conceivably an SBT) with solenoids and low-torque rotary switches on the result dials. The calculator mechanism had no...
Uncommonly-interesting item, imho. Hope it finds a good home! Regards, -- Nicholas Bodley <#o#> Waltham, Mass. <nbodley@...> Using Opera browser 7.21...
I'm trying to capture some of my youth...I once owned a Casio MQ-2 that was given to me by a friend, when I was a teenager. Unfortunately, I broke it beyond...
Hi I've got an MQ-1 if thats any use. Peter Gibson ... I'm trying to capture some of my youth...I once owned a Casio MQ-2 that was given to me by a friend,...
Hi Peter, It's funny, I've come across 3 MQ-1's in the last week, and no MQ-2's....From what I can figure out the MQ-1 is more desirable. I wish that was the...
To all members of the "Old Electronic Calculators" group : I am looking to locate any model of early TRANSISTORISED electronic calculator such as Anita 1000 or...
Not all Anita calculators used thyratrons/dekatrons and selenium rectifiers. It became clear after a while that the cold cathode technology was too aged and...
Hi all, There is a new website about the story of the Anita calculators at http://www.anita-calculators.info/, with at least some details of all the known...
Nigel Tout
nigel.tout@...
Oct 29, 2003 9:06 pm
481
MessageGeoffrey, I do not know of the Decimo Timetraveler model. The nearest name that I have details of is the Decimo Goldfinger World Traveller, which is a...
Nigel Tout
nigel.tout@...
Oct 29, 2003 10:32 pm
482
On Wed, 29 Oct 2003 21:09:21 -0000, Nigel Tout <nigel.tout@...> ... Well done, and interesting. We in the USA are probably mostly quite unaware of...
First guess: Texas Instruments TI-1000, introduced June, 1977. More in www.datamath.org .... Regards, Joerg ... turn the power off after X amount of time, such...
Best to my knowledge TI - 30 has such a "power saving" mode, such as, after some time the numbers disappear from the screen and the dots start to blink from...
I have a nice working Casio MQ-1 that I would like to trade someone for a nice working Casio MQ-2 I have a sentimental attachment to the MQ-2 and would like to...
... I was told of a IMP klervex 303 that i have never heard of it. Is there any body knowing something about that? (seems to be a led display) Pierre Le...
Pedro
nestour@...
Nov 13, 2003 10:07 pm
489
It is an interesting question. I’m passing it to the community of calculator collectors to see if we can get some input on this subject. James Redin ...
James Redin
james@...
Nov 16, 2003 12:12 am
490
Hi There, Don't expect too much respons from HP or TI fans. The graphing calculator was invented by a Japanese company: The first commercial available grapging...
Hello James, This is a some Casio graphics calculators timeline: FX-6000G 1986.04 FX-6200G 1991.12 FX-6300G 1991.12 FX-6500G 1986.04 FX-7000G 1985.10 FX-7000GA...
Sergei Frolov
frs@...
Nov 16, 2003 8:56 am
492
What a surprising number of models! Thanks, Sergei! I had a look at Sergei's slide rule images; they are very good, indeed. My regards to all, -- Nicholas...
