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...
There used to be some very well-informed people at (iirc) comp.sys.hp48, or something like it. Although devoted to the HP-48, one of the very early handheld...
Hi Community, I know that this forum is not intended to sell stuff... But I thought that you are interested in knowing that a rare Faber-Castell TRX is on...
- Subject: Friden Calculator Hi I have an old Friden h ? calculator. It is totally mechanical and can add subtract multiply and divide. It seems to work ok. I...
IIrc, the H models were hand-cranked. They were probably relatively rare. As to H vs. HW, I'm sorry I don't remember; possibly the HW was a more "stylish"...
I just joined the group after I have long been trying to ge info on a calculator/clock from Casio that my father got as a gift way back in '78. In my search ...
... Sorry, I don't; but try a search for a Curta, and (probably) use that (or one of those?) Btw, if I may ask, what is your "buy immediately" price? I might...
Woops, I'm sorry! (I assume that Oldcalcs is not for buy and sell transactions.) I should have replied directly to Mr. Estes. It's really easy to ignore the...
Quirk #021 Programming Pot Holes The Radio Shack EC-4021 is a very simple LCD 40-step programmable calculator. (Apparently made by Sharp.) While you are...
Bob Patton
patton@...
Nov 24, 2003 3:35 pm
502
Does anyone have an Hp-71B that they are willing to sell? I might be interested in buying one. -Adam...
Sorry not to offer any help, but I think this might have been the one with a one-month calendar display that selectively darkened LCD digits in seven adjacent...
In 1977, the Toshiba LC-833 and Texas Instruments TI-1790 were among the first (if not THE first) calculators with a day/time alarmm feature. The information...
To evan947 - can't help you as I joined the group primarily because of my interest and experience with electro-mechanical calculators of the 1950's and 1960's....
Well, it's a PUBLIC group, you know. My handle is all over the web, but that's because I'm a prolific poster. Roy, I suggest you look at the CONTENTS of such...
Hi! I am looking for a Casio fx-950 calculator. If you have this one for sale/trade, please let me know. Best regards, Sergei Frolov ...
Sergei Frolov
frs@...
Jan 30, 2004 6:31 pm
509
He's a calculator expert but all the references to him on the Web are from the late 1990s. I tried a couple of email addressed but they didn't work....
Hi Evan, Try the email given in these pages: http://www.dotpoint.com/xnumber/larry_sharp.htm http://www.etedeschi.ndirect.co.uk/howto3.htm ...
James Redin
james@...
Feb 18, 2004 7:09 am
511
Thanks to everyone who replied to me directly! I managed to get in touch with him. However I'm still looking for ANY information about the Sharp "Pocket ...
Hi Myka - I already have a Monroe in my collection, but I'm sending a copy of your message to a list of friends interested in vintage calculators. James Redin ...
