Swiss Micros and WP34s...

[Michael de Estrada]

I received mine today and installed it w/o any problems. I didn't bother to reuse the old battery and just installed a fresh new battery in the new PCB. Also, I didn't experience any problems with the foam padding. The new keyboard is a big improvement over the original one. It does require more effort to depress the keys than on the HP 15C, but the feedback is excellent and the keys register reliably w/o repeating with a very nice audible and tactile click. The calculator comes with the M1B firmware that provides about 3.5 times more storage memory than the standard HP 15C, which greatly improves its usefulness. SwissMicros claims 30 times faster operation at 48 MHz than the HP 15C. Another significant difference is that the LCD display is about 1cm longer than the original, which allows larger fonts and improves legibility. In many ways this is the best calculator based on the HP 15C ever made.