A common flaw with used calculators is missing battery doors. I've found an inexpensive way to make them. It doesn't give you museum quality, but it covers...
Bob Patton
patton@...
Aug 4, 2001 11:49 pm
215
Calculator Quirks #001 The Canon Palmtronics LD-8M2 and LD-8Ms have identical footprint sizes and keyboards. The 8Ms is about half as thick and uses two AAA...
Bob Patton
patton@...
Aug 24, 2001 1:13 am
216
Maybe the LD-8Ms is a later improved version. Is there a timeline of these on the web anywhere? Hans ... __________________________________________________ Do...
Hans Olminkhof
hanso@...
Aug 24, 2001 9:18 am
217
The only reference I know of is the Ball/Flamm book and it doesn't have dates for these particular calculators. It sounds like a good guess that a somewhat...
Bob Patton
patton@...
Aug 25, 2001 6:08 pm
218
8/25/01 14:09:18, "Bob Patton" <patton@...> wrote: [...] ... I've been in electronics all my life, and while I don't know a lot, that seems quite...
Nicholas Bodley
nbodley@...
Aug 25, 2001 11:45 pm
219
Calculator Quirks #002 The Casio-Mini Memory has two = keys and a three position power switch (Off, On, T). With power in the 'T' position the white = is...
Bob Patton
patton@...
Aug 30, 2001 12:41 am
220
... Probably neither. The Marchant Cogito electronic desktop machine (ca. 1964) also had half-size zeros. I'm not really sure why, but back then, the 7-segment...
Nicholas Bodley
nbodley@...
Aug 31, 2001 2:24 am
221
Thanks to Nicholas for supporting what I suspected, that the half-sized zeroes were a design decision. (But they do look strange.) I am hoping someone has this...
Bob Patton
patton@...
Aug 31, 2001 1:32 pm
222
The Radofin 8P uses a 9 volt battery but it doesn't have a snap connector. The battery fits in its compartment snugly and presses against two flat contacts. ...
Bob Patton
patton@...
Sep 4, 2001 3:40 pm
223
Yes, check out some odd-bods on my Museum of Soviet Calculators http://www.taswegian.com/MOSCOW/soviet.html The display technology, in particular, is quite...
TwoHeaded Software
adavie@...
Sep 4, 2001 4:05 pm
224
... I agree it's in the quirk category. Sometimes the engineering types (I'm one, somewhat) aren't quite matched to the way most of the rest of us think. Best,...
Nicholas Bodley
nbodley@...
Sep 5, 2001 5:31 am
225
9/4/01 11:28:23, "Bob Patton" <patton@...> wrote: [...] ... The Friden EC-130 might have showed all digits at once, zeros or not. However, I don't...
Nicholas Bodley
nbodley@...
Sep 5, 2001 5:33 am
226
Thanks to Andrew Davie and Joerg Woerner (earlier) for their educational web sites. I regret that my slow dial-up modem (and maybe my low-cost ISP) keeps me...
Bob Patton
patton@...
Sep 7, 2001 1:15 am
227
We have started writing the History of the Marchant Calculating Machine Co., If you have any items of interest you would like to add, please let us know....
Ernie Jorgenson
ejorgens@...
Sep 9, 2001 4:43 am
228
Ernie, Great!! I hope you include a good photo of Harold T. Avery. Please remind me to have another look at the German-language site (hope I can find it!)...
Nicholas Bodley
nbodley@...
Sep 9, 2001 5:30 pm
229
Hi Nicholas.. Thanks for the reply. The fact is you should be doing this work not me, I don't know anyone who knows more about calculators than you. I have a...
Ernie Jorgenson
ejorgens@...
Sep 13, 2001 1:31 am
230
Hi Hewlett Packard 71B Pocket Computer, HP Wand and Power Supply plus a loop cable for connecting between the input and output ports and a miscellaneous EPROM...
dave@...
Sep 27, 2001 3:33 pm
231
Calculator Quirks #004 The litronix 2230 is an attractive LED machine with square root, memory and power-on from one of the regular momentary-contact keyboard...
Bob Patton
patton@...
Oct 4, 2001 12:23 am
232
Hello! You may add also Russian calculators: Elektronika B3-34, MK 52, MK 54, MK 56, MK 61 They all has ERROR (bir chars) message for error. Additional...
Sergei Frolov
frs@...
Oct 4, 2001 4:27 am
233
I just came across the Sperry-Remington 663 which also uses half-sized zeroes. So it seems very much like this is a deliberate design. Still looks funny, ...
Bob Patton
patton@...
Oct 5, 2001 12:26 am
234
On Thu, 4 Oct 2001, Bob Patton wrote: }I just came across the Sperry-Remington 663 which }also uses half-sized zeroes. So it seems very much }like this is a...
Nicholas Bodley
nbodley@...
Oct 5, 2001 12:38 am
235
... In Cyrillic, I would assume. Did it look (in Cyrillic) like "EPPOP"? ===== Sometime, probably in the 1970s, when affordable LCD calcs were still new, I...
Nicholas Bodley
nbodley@...
Oct 5, 2001 5:40 am
236
Thanks Sergei, I don't get to try out many Russian calculators....
Bob Patton
patton@...
Oct 5, 2001 11:06 am
237
... Like all the early CASIO MINIs. The Sperry 663 (and all the other Sperrys) were made by Casio, FYI. Frank Boehm...
Frank Böhm / DSP
frank@...
Oct 5, 2001 1:17 pm
238
Nello Nicholas, ... No, we see "Error" (in English) on the display but "r" chars are big. See http://www.geocities.com/SiliconValley/1061/b334dc2e.htm for...
Sergei Frolov
frs@...
Oct 6, 2001 11:00 am
239
... big. (Aha! [Y]Eggog! :) ... details. Very nice-looking page! Beautiful design. The text did run beyond the right "border", though in Opera (browser) 5.12,...
Nicholas Bodley
nbodley@...
Oct 6, 2001 8:24 pm
240
I have the following Marchant rulers for sale. Thought I would offer them to the group before I placed on e bay. Many of these ruler have never been used. ...
Ernie Jorgenson
ejorgens@...
Oct 10, 2001 6:03 am
241
Hi Ernie, Great, I would like ALL of them. What will the cost be, including shipping to Israel? The "United States Postal Service" has an on-line site, where ...
Erez Kaplan
calcmach@...
Oct 12, 2001 9:33 am
242
The Novus 835 ($10 in 1980) is a shirt-pocket 9v LED machine with a combination memory. It has both MS, for direct store, and M+,M- keys. This is a useful...
Bob Patton
patton@...
Oct 23, 2001 1:31 am
243
I recently got a TI PC-100C thermal printer. I have a PC-100A that I bought with my original TI-59. Does anyone know what are the differences between the A, C...
