Somehow, [acidx] knew that I coveted a libretto for years. He sent in his writeup on modding his Libretto 50ct to be a bit more useful. The mods are pretty basic, he overclocked it to 133Mhz and added a ps/2 port. The tweaks keep the well aged libretto a usable platform.
Pssst. wanna see your hack on Hack-A-Day? Use the tips line!
Here’s the final batch of entries we received and considered for the Design Challenge.
[Chris] sent in a stereo amplifier (watch out for pop-ups) designed for iPods (or similar) using LM386 amps and a minimal parts count.
[Fabian] submitted this excellent tube amp. It’s based on the ECC83/12AX7 tube, and runs off a mere 12-14VAC.
[Edgar] sent in this combination PIC/AVR programmer.
Finally, we’ve got a simple PIC/EEPROM programmer by [Ian]. (view the unzipped version here)