HP Forum Archive 20

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Original HP15C article from HP Journal, May 1983 Message #1 Posted by JamesT on 23 Sept 2011, 8:44 p.m. With all of the "renewed" interest in the 15C with the release of the limited edition, thought you might get a kick out of this issue of HP Journal from May, 1985. It has a very interesting feature (page 25) on the 15C and 16C calculators, which had just been released. http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1983-05.pdf It is refreshing to see how enduring a truly great design can be, even after nearly 30 years, and the article reinforces what a great engineering company HP was in those days.

Re: Original HP15C article from HP Journal, May 1983 Message #2 Posted by John B. Smitherman on 23 Sept 2011, 10:02 p.m., in response to message #1 by JamesT Thanks James. That's some great stuff. I doubt that Meg or any of the other board members could understand any of the articles. John

Re: Original HP15C article from HP Journal, May 1983 Message #3 Posted by JamesT on 24 Sept 2011, 12:52 a.m., in response to message #2 by John B. Smitherman Here's another one I found, featuring the 9100A...lots of cool stuff out there if you dig a little... http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1968-09.pdf

Re: Original HP15C article from HP Journal, May 1983 Message #4 Posted by Dwight Sturrock on 24 Sept 2011, 1:39 a.m., in response to message #1 by JamesT Great engineers in those days. Now we can't even match up the right batteries with the new circuit. Isn't there anyone left in the calculator division that knows the difference between 20mA and .18mA? Dwight

Re: Original HP15C article from HP Journal, May 1983 Message #5 Posted by Thomas Radtke on 24 Sept 2011, 3:26 a.m., in response to message #4 by Dwight Sturrock For sure there is. I know myself how hard it is to get everything right if administration doesn't really care for things you're working on. You simply get too little funding. That's all. Edited: 24 Sept 2011, 3:26 a.m.

Re: Original HP15C article from HP Journal, May 1983 Message #6 Posted by Paul Gaster on 24 Sept 2011, 10:43 a.m., in response to message #5 by Thomas Radtke All sorts of crazy things happen in just about any company these days. For an example I am now working as a temp engineer at a company, and my job is to get a new bench/workstation product launched. I will try to avoid the company name, etc. The company has been in business for decades and does great work. However they were bought out by a larger company about 2 years ago, and this parent company wanted them to have a new more modern looking bench/workstation with more features. The parent company paid a design firm over a quarter million dollars for development. There are more design problems and issues than you could imagine. The design firm never worked with the small company on details. The workstation surface was supposed to be be available in two heights. There are some parts missing in the CAD files for one height, plus there is an interference problem if you drop the working surface and associated parts to the lower height. Oh, and some electrical wiring has no openings to run through for the lower height option. On top of that the entire workstation was designed to use metric steel and fasteners and the company I am working with makes everything in house now and they don't have a metric wrench or tool in the place. There are other design issues and potential problems too. The workstation has a board and wire harness, but of course it doesn't look like the company's standard UL approved harness will be able to be re-used in this design, so we need to deal with that too. It really is a mess. Anyway, back to reality here and HP calculators. I am encouraged about some recent things in HP like the new 15C LE, the 30B and overall the use of ARM processors. Also it's great to see support, input and help from HP people here.

Re: Original HP15C article from HP Journal, May 1983 Message #7 Posted by Dominic Richens on 24 Sept 2011, 11:42 a.m., in response to message #6 by Paul Gaster Quote: All sorts of crazy things happen in just about any company these days. Tell me about it! I used to work for Bell Northern Research, then Nortel. I'm one of the lucky ones that got a job with the engineering minded company that bought out our line of business. In BNR days us engineers could spent 10% of our time doing whatever we wanted. Sometimes those little skunkwork projects turned into a product/feature. Nortel did away with that. The new company has brought that back - it's awesome! Hopefully HP's calculator team will be as lucky.

Re: Original HP15C article from HP Journal, May 1983 Message #8 Posted by Kiyoshi Akima on 24 Sept 2011, 8:32 p.m., in response to message #6 by Paul Gaster If you think companies are bad, try governments. I was once involved (somewhat peripherally) with the design of a radio tuner for the Air Force. This was a box to fit into an existing rack-mount unit, but with a new frequency range. The prototype worked fine, survived the vibration, heat, cold, and other tests. Then they initially rejected the unit because it weighed two pounds (that's about one kilogram, for those outside the US) LESS than the old unit it was replacing. Since our new digital design was so much more compact than the older analog circuit, we solved the problem by bolting two pounds of lead inside the case and raising the price accordingly. This was for a radio intended for use aboard a Boeing 707. The two pounds were supposedly necessary to maintain aircraft balance during a twelve-hour flight.

Re: Original HP15C article from HP Journal, May 1983 Message #9 Posted by Dave Johnson on 24 Sept 2011, 5:59 p.m., in response to message #1 by JamesT Others of interest? 1968-09 hp9100A 1972-06 hp35 1972-12 hp9800 1973-05 hp80 1974-06 hp65 1975-11 hp 21/22/25 1976-06 hp1925A 1976-11 hp67/97 1977-05 calc sort 1977-06 calc trig functions 1977-10 hp92 1977-11 calc inv trig functions 1977-12 hp-01 1978-04 hp9845A log functions 1980-03 hp41 1983-02 hp-41 hpil 1983-06 hp-75 1984-07 hp71B

Re: Original HP15C article from HP Journal, May 1983 Message #10 Posted by DigiGal on 26 Sept 2011, 4:07 p.m., in response to message #9 by Dave Johnson Museum CD/DVD - Approximately 1400 scanned HP manuals, applications pacs, HP Digests, HP Journals, HP Keynotes, programs and brochures in Adobe Acrobat (PDF)

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