Found in a Popular Electronics from the 90s, this game can be seen in other configurations on this site. The circuit uses components that are still common today.
We found this circuit in an old publication. The circuit can be implemented with modern equivalent...
Suggested by Fairchild in a 1980s publication, this multiplier uses operational amplifiers from that...
This low-pass circuit was found in the December 1990 issue of Radio Electronics magazine. The...