HP calculator keys



#8

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


#9

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.


#10

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?


#11

Current (Chinese) 12C's are unchanged with metal discs. I can't comment on the Platnuim version.

#12

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?


#13

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.


#14

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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