I picked up an Olivetti Summa Quanta 20 7/8 T for a couple bucks a few months ago. It's sort of amusing to have at work, despite its limitations (addition and...
... Problem is not in the print wheel. It's the accumulator gears underneath in the middle of the machine. -- Jay Respler OLIVETTI SERVICEMAN ADVANCED BUSINESS...
JAY RESPLER
jrespler@...
Mar 14, 2007 6:16 am
537
... underneath in ... Hey Jay, Would it help to lube those gears? If so, would you care to share the secret of how to remove the plastic cover on this machine?...
... Not only help, it's REQUIRED. ... Not screwed. Case has tabs fitting into the machine body. It has to be pried off. -- Jay Respler ADVANCED BUSINESS...
JAY RESPLER
jrespler@...
Mar 17, 2007 6:49 am
539
Hey Jay, I have the bottom of the calculator off now. Ready to start lubing. Not sure what the "accumulator gears" are. Can you describe what I should be...
... Gears in the very middle of the machine directly under the print wheels. ... For the accumulator gears, light oil only, no grease. ... -- Jay Respler ...
JAY RESPLER
jrespler@...
Mar 29, 2007 4:59 am
541
... Gears in the very middle of the machine directly under the print wheels. ... For the accumulator gears, light oil only, no grease. ... -- Jay Respler ...
JAY RESPLER
jrespler@...
Mar 29, 2007 10:17 am
542
Jay, Okay, I got the gears oiled. But there's a new problem. I was using a paper clip to aid in dripping the oil down on to the gears, and the damn thing...
... Should instead use oil can with long spout to get all way into machine. ... It may have fallen all way through. Pry off bottom pan to see if you can find...
JAY RESPLER
jrespler@...
Apr 7, 2007 8:32 am
544
I already have the bottom pan off. Discovering how to get that off was pretty easy. I was oiling the gears from the bottom with my Ames oiler, but the paper...
... In similar cases, I run the machine to see if it clears out the part. If not, I forget about it till it causes a problem (if ever). It could be stuck on...
JAY RESPLER
jrespler@...
Apr 8, 2007 2:15 am
546
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...
