HP Forum Archive 14

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HP calculator keys Message #1 Posted by Jeff on 8 Feb 2004, 11:40 a.m. Hi, Does anyone know what the last HP calculator was to use the good keys (like the keys on the 41C series)? Was it maybe the 48SX? Thanks, jw

Re: HP calculator keys Message #2 Posted by Randy Sloyer on 8 Feb 2004, 4:31 p.m., in response to message #1 by Jeff No, all the 18/28/48 series used the same technology plastic keyboard as the Pioneer machines before them. The 41's and Voyagers where the last to use metal domes.

Re: HP calculator keys Message #3 Posted by Eric Smith on 9 Feb 2004, 12:15 a.m., in response to message #2 by Randy Sloyer Quote: The 41's and Voyagers where the last to use metal domes. Speaking of which, do current production HP-12C calculators still use the metal snap-discs? Or have those gone plastic as well? And what about the 12C Platinum?

Re: HP calculator keys Message #4 Posted by Randy Sloyer on 9 Feb 2004, 7:14 a.m., in response to message #3 by Eric Smith Current (Chinese) 12C's are unchanged with metal discs. I can't comment on the Platnuim version.

Re: HP calculator keys Message #5 Posted by Andreas on 9 Feb 2004, 6:15 a.m., in response to message #2 by Randy Sloyer Is this true? My 28's keys have a high quality tactile response, my 48sx as well, and my 48g feels completely different, somehow cheaper. Am I wrong?

Re: HP calculator keys Message #6 Posted by Randy Sloyer on 9 Feb 2004, 7:20 a.m., in response to message #5 by Andreas The HP engineers did a good job with plastic, didn't they? While the 18/28 keyboards where different than the 48's, the snap domes were still plastic. It could be argued they are of a higher quality than the Pioneers and 48's but IMO, it is a moot point, given the history of keyboard failures and battery doors.

Re: HP calculator keys Message #7 Posted by Andreas on 9 Feb 2004, 11:44 a.m., in response to message #6 by Randy Sloyer I read about these issues and am still amazed that my 28 never hat a KB problem, nor the three other ones my friends bought at the same time. Maybe just a lucky batch of 28s. The battery door, however, requires utmost attention.

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