Calculator Quirks #012 The Monroe 98 is a fluorescent hand-held machine from about 1976. It has an accumulating memory (M+ and M- keys.) Usually, accumulating...
Bob Patton
patton@...
Oct 17, 2002 12:30 am
345
Hello all! I have found another Russian arithmometer named "Kirja" (in Finnish, mean "book"?). This is export version, very similar to "Portable" arithmometer,...
Sergei Frolov
frs@...
Oct 25, 2002 6:36 pm
346
A calculator aficionado might have a fantasy about being in a situation where he needed to do some complex calculations but all he had was a simple calculator....
Bob Patton
patton@...
Oct 29, 2002 1:21 am
347
Hi! I am starting to batch some of the larger items up. I will be offering these thing to anybody who gives the best offer - then I will be discarding them......
SHARP ELSI MATE PC-1201 w/ poser supply. Found this today at an estate sale... works fine... not listed in Flamm's book.... is there anything unique about...
Hi, I had a Sharp PC-1201, purchased new. I traded it. I sent Guy Ball the information on it for the book. It is programmable and a neat little package, but ...
Bob Patton
patton@...
Nov 2, 2002 11:50 pm
350
Thanks for the info.... the unit has seen a lot of use... wear and tear shows... but the unit appears to work... at least for basic math calculations.... mblum...
Here's more detailed information on the Sharp PC-12. They called it a POCKET COMPUTER, but it was just a scientific programmable calculator. Fluorescent...
Bob Patton
patton@...
Nov 4, 2002 4:08 pm
352
Behavior 005 - Finding Chips Mike Sebastian at www.calcinfo.com has devised a simple test he uses to try and identify the chip in a scientific calculator. In...
Bob Patton
patton@...
Nov 5, 2002 1:16 am
353
From a collection of oldcalcs algorithms. CASC 002: Truncation to integer For: 8-digit calculator with memory Store 10000000 in memory. Calculate something. ...
Bob Patton
patton@...
Nov 8, 2002 12:29 am
354
Quirk 013 - If you get a Citation The Citation calculator (fluorescent) is a bit of a mystery when you first encounter it. The case bottom shows that it is...
Bob Patton
patton@...
Nov 9, 2002 1:24 am
355
From a collection of oldcalcs algorithms. CASC 004: Simplest sine For: any 4-function calculator but easiest with a memory This is really just a mathematical...
Bob Patton
patton@...
Nov 10, 2002 10:33 pm
356
(Second reply to Bob Patton's message) The Friden EC-132 was perhaps the first machine that could calculate square roots in (at most) a very few seconds, often...
Back when scientific calcs were either very costly, or even before then, there were some very interesting expressions of the type you describe, although more...
Bob, You are talking about the TI-1050, the rare cousin of the TI-1025. Get a picture here: http://datamath.org/BASIC/TI-1000/TI-1050.htm Very interesting, a...
Hey Nicholas, Thanks for your responses. I'll have more algorithms later, some that are many layered onions....
Bob Patton
patton@...
Nov 12, 2002 3:28 am
360
Joerg, Thanks for further info on the Citation. It seems there is no end to the variations on calculator models. I'll contact you off-line about photos....
Bob Patton
patton@...
Nov 12, 2002 3:28 am
361
Quirk #014 Rock On The Rockwell 204 is a fluorescent business/financial calculator from 1974. It has the usual time-value-of- money keys like PV, PMT, and n...
Bob Patton
patton@...
Nov 12, 2002 3:28 am
362
Dear friends, Please see if somebody can help with this request. Thanks! James Redin The X-Number World http://www.dotpoint.com/xnumber ...
Dear friends, Sounds a very interesting project. Hope that somebody can provide some information on this subject. Thanks! James Redin The X-Number World ...
Hi! In our country (Russia) the many of cheap Chinese calculators is sold. Basically, it is simple calculators, and also some models of the scientific...
Sergei Frolov
frs@...
Nov 20, 2002 7:37 pm
365
Sergei, in my opinon this is a Casio product. Most companies (TI,Shap,Casio) produce in China. Why do you think it is non-Casio ? Regards, Joerg ... sold. ... ...
Hello Joerg, Please compare keyboard pictures of the original Casio FX-82TL (left) and faked Casio FX-82TL (right). In the text below shall mean calculators as...
Sergei Frolov
frs@...
Nov 21, 2002 7:57 pm
367
UNBELIEVABLE !!!!! Thanks, today I learned a lot ! Greetings from Germany, Joerg ... From: Sergei Frolov To: oldcalcs@yahoogroups.com Sent: Thursday, November...
I am offering reprints of the Friden 130 and 132 CRT Calculator manuals on ebay if any one is interested. Have added lots of manuals to our website:...
Ernie Jorgenson
ejorgens@...
Dec 5, 2002 4:02 am
369
Hi, As many other calculator collectors I have a special interest in the early Busicom models because of their rarity and historical value. Despite searching...
Richard Schatz
rschatz@...
Dec 5, 2002 2:58 pm
370
Hello! The faked Casio fx-3600PV has internals from Sharp EL-506P. A simple scientific calculator instead of programmable. See details at...
Sergei Frolov
frs@...
Dec 8, 2002 10:39 am
371
From a collection of oldcalcs algorithms. CASC 005 The Laguerre cosine approximation is good to 4 digits for 0 to 90 degrees and is exact at 0, 45, 60 and 90. ...
Bob Patton
patton@...
Dec 12, 2002 2:39 am
372
Hello: Does anyone out there have information on the Mutifix Calculator? I recently bought one, and while it seems to work, I would like to know more about it....
Quirk #015 - one-celled creatures The TI-2550 III (fluorescent) has the same sized case and battery pack as the SR-50 (LED). The battery pack, however, is...
