My interest is really collecting old DTMF programmable telephone tone diallers. Many of them were calculators with the tone dialling facility as an extra....
On Sat, 23 Jun 2007 12:55:17 -0400, Edward Hyde <eh9999@...> ... Oh, dear. A competent electronic technician (not so commonplace, it seems) should be...
Hi, I have found an official government standards (GOST) for designing calculators. Standards dated 1985th and 1986th years. You may download it from: ...
Sergei Frolov
frs@...
Aug 1, 2007 5:34 pm
549
Hi folks, I know this is somewhat of a spammy message, but I am thinking that folks who like old calculators (like me) might also be folks who like ...
Hi all. My name is Rich Wood and I have a number of still operational old calculators. These include HP models 35, 55, 65 and 67 as well as a Commodore LED ...
Calculators have increased enormously in speed since the early scientifics. I have a Commodore RPN4921 that can take up to 4 seconds or so for some trig,...
Rich, It is amazing how far calculators have come, bit also amazing to see some backtracking as far as speed goes with HP's most recent machine, the 35s. ...
Katie; I visit there too. I heard about the 35S and am waiting to receive mine, hopefully tomorrow. I bet it is still faster than the 11C and 15C series, as...
Rich, The 35s is a lot faster than the 11C but nowhere near as nicely designed -- the 11C is far superior in every respect from an engineering perspective....
On Tue, 14 Aug 2007 18:43:22 -0400, Rich Wood <astronut1001@...> ... So nice to see comments like this! The HP Journal, long ago (perhaps around the time...
Thanks, Katie! On Tue, 14 Aug 2007 21:45:13 -0400, katie10543 <katie10543@...> ... Oh, my -- yet another delightful time sink! The first machine with RPN...
On Wed, 15 Aug 2007 01:01:50 -0400, Rich Wood <astronut1001@...> ... There must have been huge sadness when HP's calculator department disbanded, or...
On Wed, 15 Aug 2007 10:18:31 -0400, katie wasserman <katie10543@...> ... Stray thoughts, subject to change: That depends upon the degree of technical...
Nicholas; I worked in QA at Xerox Diablo Systems in Fremont CA when Bob Ragen was a design engineer there. He mentioned the old Friden calculators a couple of...
Nicholas; BTW I found your Friden EC130 article on the web here. Looks interesting. Thanks for doing it. http://www.oldcalculatormuseum.com/nbodley.html Rich...
On Wed, 15 Aug 2007 18:58:04 -0400, Rich Wood <astronut1001@...> ... Interesting; I didn't know he worked there. ... I'd say that's typical of him; he's...
On Wed, 15 Aug 2007 19:13:12 -0400, Rich Wood <astronut1001@...> ... Glad you appreciated it! I wrone it quite a while ago; have wanted to try rewriting...
Nicholas; I just joined the group and try to be active in those that I join. I joined a dead Afocal astrophotography group and more than doubled membership and...
Nicholas; Sounds like a similar level of technology to some of the early computer terminals. I remember one with a huge board that was all pretty much nothing...
Nicholas; Here is another link to someone's Friden EC130 memories from the early days. http://www.oldcalculatormuseum.com/d-ahrens.html Rich Wood ... ...
This looks much like a classic HP calculator in many respects. The keys are the same general design as used on HP calculators such as the HP 65, 67 and 3x...
For anyone still feeding an HP calculator such as the 41 series which takes N cell batteries here is a more reasonably priced source than anyone else I have...
Lou; Back then HP was a world leader in reliability testing and design engineering. HP equipment back then was designed to work practically forever. I still...
Lou; Unfortunately it seems like in a high tech company when the financial people take over from the founding engineers the company is in trouble. Rich Wood ...
Hi Rich, I received the package of 48 batteries. I was quite disappointed to find that when I check 16 of them, they were dated 11/06. I figured that if...
Lou; I had heard of such web companies but not personally run into such. Thanks for the warning. I will look elsewhere then. Rich Wood ... to ... figured ... ...
Lou; I have ordered from another source, Digi-Key, who are an old line company. They list Energizer N Alkaline batteries for 70 cents each in lots of 24. If...
Hi Rich, I found the Energizer support information. I will call them in the AM. Lou General Inquiries Customer Support Energizer Headquarters 533 Maryville...
