CR2032 to 1/2AA converter to use in various old Macintosh computers that used 1/2AA batteries as the PRAM battery.
Home brew CPU Hardware with 1-bit ALU implementation using 74LSxx, a micro-code and assembler coded in C#.
Helium is a triple 1-to-3 precision buffered multiple and 3-to-1 precision adder
wntrblm
16
Open-source TLS 1.3, WiFi, and Ethernet ISA card for vintage PCs (XT/AT/386/486). ATF1508AS CPLD + ESP32-S3