Last Update: February 21, 2007 -- THE HP REFERENCE
THE CALCULATORS OF HP POSTERNEW 2005 PRINTING
Introducing the Calculators of HP poster for all HP fans. This poster shows every HP calculator made starting with the famous HP-35. Each calculator is displayed with it's production start and end data, and it's project codename. The HP Calculator poster is very suitable for framing and will make a wonderful gift to any HP enthusiast. It is an essential element in any HP calculator collection. The poster measures 16" (41cm) in width and 24" (61cm) in height and is printed on high quality Strobe Gloss 100 pound paper with a clear UV Coating. The poster will be shipped in a rugged 3"x18" Kraft Mailing tube.
Buyer Feedback!
Countries Sold To (so far)
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HP-12c platinum
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HP-32c
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HP-33cs
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HP-33s
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OK, one more try. Take the great display on the new 33s (with larger comma/decimals), and merge it into to HP-15C package. That's an engineers dream calculator. HP ARE YOU LISTENING? |
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Bring back the HP-15Cby Chris W |
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The First and the Last HPs |
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A Guide to HP Handheld Calculators and Computers
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A look inside Hewlett-Packard's HP-11C |
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HP-95 PALMTOP: POWER IN A SMALL PACKAGE |
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Microcode: Electronic Building Blocks For Calculators |
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Made in USA...finally! |
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The HPs |
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Hewlett Packard Dates |
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Hewlett Packard Weights |
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30 Series DerivationsThe first generation of the 30 series used a highly experimental construction technique. HP actually used a flex circuit board and held the ICs against the circuit by clamping a plastic form onto a foam backed steel plate without solder. The steel plate was used to stiffen the case. The flex circuit also wrapped around to the front where keyswitch domes were formed to replace the older metal dome (or plate) keys. As the parts and housing aged the ICs became intermittent and the calcs had to be serviced. HP addressed this design flaw in later models by changing to a conventional printed circuit board (PCB) with ICs soldered to it and removed the steel plate. The keys were switched back to metal domes. The resulting changes fixed the intermittences and the calculators were 1 1/2 ounces lighter (from 174 grams to 130 grams). How do you tell the difference? The 30 series are quite hard to open due to a locking plastic edge on the bottom. The give away is the plastic domes are mushier with a longer travel. The metal domes have a short travel with a distinct click. Also the metal dome units are lighter (~130 vs ~174 grams). I see two types of series derivatives that seem unrelated, the metal vs dome keyboard designs and the different keyboards colors. If you don't mind, check your collection and help me fill in my matrix some more. |
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The Hewlett Packard Publications
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Hewlett Packard ArticlesThe Hewlett Packard Articles page contains a series of articles written by Wlodek Mier-Jedrzejowicz. They were published in DATAFILE, the jounal of the HPCC (please join!).
If you like this material then you have to buy his book: |
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Codenames of HP Handheld Calculators and PDAs:
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