This circuit was found in the July 1990 Radio Electronics magazine. It is based on the 3-digit indicator ICs CA3161 and CA3162.
This circuit can be used with receivers to attenuate signals that may cause interference. The...
This circuit is from a Linear datasheet. The circuit provides a 5 m voltage with 40 mA from an AA...
Found in a Popular Electronics from the 90s, this game can be seen in other configurations on this site. The...