The Museum of HP Calculators

HP Forum Archive 10

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42s Double Speed
Message #1 Posted by Kris Collins on 2 Feb 2003, 9:19 p.m.

Does anyone have any accurate information on the 2x speed routine for 42s? None of my three calcs will retain the double speed setting. Two calcs are 1993 and 1994 models which are not supposed to retain 2x mode but another calc is 1988 model and it should behave differently. Anyone know if possible to easily get into 2x mode and stay there?

Tnx

      
Re: 42s Double Speed
Message #2 Posted by Gene on 2 Feb 2003, 9:33 p.m.,
in response to message #1 by Kris Collins

http://www.rskey.org/gene/hpgene/hp42fast.htm

The link above has the program. A 1988 HP-42S should run it, but I don't know for sure.

Gene


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