HP Forum Archive 21

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What's are the HP-56 and HP-66? Message #1 Posted by Matt Agajanian on 3 Aug 2012, 12:55 a.m. Hello all. If you remember forum member Jose Goncalves' hptree.pdf file, 'The Real Roaring 20s,' a line goes up from the HP-65 to an HP-66. Just the same, a line extends up from the HP-55 to the HP-56. But, there are no pictures or write-up of an HP-56 or HP-66 here at MoHPC. So, just what are these models and where can I see a pic and find out about them? Thanks Edited: 3 Aug 2012, 1:01 a.m. after one or more responses were posted

Re: What's an HP-66? Message #2 Posted by Eric Smith on 3 Aug 2012, 1:00 a.m., in response to message #1 by Matt Agajanian There isn't an HP-66, though there was a design study that led to the HP 9815.

Re: What's an HP-66? Message #3 Posted by Matt Agajanian on 3 Aug 2012, 1:04 a.m., in response to message #2 by Eric Smith Ah, the History section. Thanks for the compass point.

Re: What's an HP-66? Message #4 Posted by aj04062 on 3 Aug 2012, 12:32 p.m., in response to message #2 by Eric Smith So who has possession of these prototypes?

Re: What's an HP-66? Message #5 Posted by Matt Agajanian on 3 Aug 2012, 4:38 p.m., in response to message #4 by aj04062 Can't say I do (otherwise I wouldn't have made the post).

Re: What's an HP-66? Message #6 Posted by Eric Smith on 4 Aug 2012, 5:30 p.m., in response to message #4 by aj04062 Prototypes? There weren't any, unless you count the wooden models.

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