This circuit was found in an English publication from the 70s, an article that teaches how to calculate instruments. The circuit is still current and can be built with an analog indicator of 100 uA.
This 2001 CMOS digital circuit draws numbers from 00 to 99 and can be expanded. However, it does...
This circuit is from a Hands-On Electronics from the 90s. The integrated amplifiers used are well...
We found this digital CMOS circuit in a documentation from the 90s. The circuit generates signals...