HP-48GX key stiffness

[Steve Simpkin]

(03-27-2021 04:40 AM)anyfoo Wrote:  For anyone caring, I just got an HP-48SX off eBay (to repair, but the keyboard itself seems fine), and it does feel different from my late Indonesian HP-48GX. Softer and quieter.

I'm not too bothered however, my HP-48GX works very well, and continues to look like new. In fact, I bought the broken 48SX so that I could open another one without feeling too bad about it.

It's interesting that there is a difference in the key press feel and sound between HP-48 models. I have a USA HP-48SX from 1991 and a Singapore HP-48G from 1994. I always thought there was a slight difference in the way the keys felt and sounded but they are very similar. My HP-48G does creak more.

Here is more information on how to disassemble an HP-48 from Han Duong.
https://web.archive.org/web/201309151722...uong/open/