CASIO fx-5200P Scientific Computer teardown

[Chasfield]

Great tear down. The keyboard membrane construction is interesting. I am thinking that after losing sales with the squishy key tops of the Casio fx-7000G era, they thought they could do better by hardening the key tops yet stay cheap using one-piece membranes.

As a youth, my two biggest un-boxing let downs were the Texas TI57 and the Casio fx-7000G. The infra-red and ultra-violet of keyboard feel. In both cases I immediately felt that I had wasted my money.