This circuit is from a 1968 documentation using one of the first integrated circuits available at the time, the TAA370. The circuit is powered by 1.3 V using a 200 ohm handset.
An FM receiver with good sensitivity and with acceptable sound quality in the strongest stations, can...
Exciting a sequential circuit with the output of a stereo we can make a set of lamps run at a...
The circuit shown was found in American documentation from the 1990s. The transistor can be of any...