Eric Schlaepfer aka TubeTime has released an open source tester for vintage DRAM ICs. It is based on the fabulous Raspberry Pi Pico 2 microcontroller. It supports even older chips that use -5V and +12V. I ordered PCBs and the components for building the tester, so let’s warm up the soldering iron and build something!
Month: May 2025
FG 100 DDS Function Generator
A function generator can be a great debugging tool for digital and analog circuits. There is a very cheap one floating around that’s called the FG-100 DDS. What are its specs and is it any good?