» VIC 20 Keyboard
Convert your old Commodore VIC-20 into a personal computer keyboard using an Arduino Leonardo (or clone of it).

» Link Cables
Learn about the various cables to connect your calculator to your PC, compare the different types, and find out how you can build one.

» Overclocking
Simon Lehmayr has overclocked his PC-1360 by exchanging the resonator. Just have a lock at his homepage (be aware that previously recorded tapes won't work after this modification).

» How to install a Beeper into the Sharp PC-1246S
In german; This stuff is taken from www.abyte.de/os/beep1246.htm. I made a local copy because I think it will be no longer maintained on this site (there is no link on this document). Be aware that there is no warranty of any kind. I did not try it, because I do not own the box.

» CE-126P Secrets
Discover some secret characters on the CE-126P printer/tape interface and learn how to exchange the 11 pin cable and other hardware tricks.