The Museum of HP Calculators

HP Forum Archive 13

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Horse Racing 11C
Message #1 Posted by on 14 Sept 2003, 1:30 a.m.

Further down this page, there is some discussion concerning a "horse racing" 11C on eBay. I ended up buying this 11C, and wanted to post what I have (and have not) found.

There is, in fact a template on top of the regular face plate. The template looks to have been professionally die cut, with an adhesive backing, not glued on at the kitchen table. Also, the printing on the template looks like a "factory" job. The calc passes both tests, and seems to function simply as an 11C.

I found another reference on some other discussion site to another one of these having come up on eBay some time back. The discussion was similar to what we saw here. But the point is that there has been at least one other auction of this type of item - Yes, maybe this very one.

Something else I found interesting, and possibly related to this calculator, is that HP apparently sponsors the "Galway Plate" horse race. I don't follow horse racing, and have never heard of the Galway Plate, but see,10149,1009359,00.html to see what I am talking about. Perhaps HP put these out in association with this horse race. Just speculating.

Does anyone else know anything about HP's association with horse racing?

Re: Horse Racing 11C
Message #2 Posted by Patrick on 14 Sept 2003, 4:00 a.m.,
in response to message #1 by

Congratulations on your purchase, tbcab. I think the 11C is a very fine little machine. In fact, for the last few weeks I've been labouring to bring the power of the SOLVE function from the 34C and 15C to the 11C by means of a program which follows Dr. Kahan's algorithm description reasonably closely. I'll publish it here at some point.

But about your "special" version...

Does the template suggest that certain keys have functions that cannot be explained with the normal operation of the calculator? For example, I could make certain keys operate differently by using USER mode or by prefixing the keystroke with GSB. Are there template key functions which don't follow these patterns?

The reason I'm asking is that, if so, it would suggest that a different ROM was installed, in some machines at least. Based on your description of it operating like a "normal" 11C, the odds are small of this being so, but I thought I'd ask!

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