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.
September 2017 - Texas Instruments DRV5032 Hall Effect sensors, an ultra-low power digital switch...
This circuit is from an old American publication. The indicated transistor is oversized as the 15 V...
This circuit compresses the dynamic range (amplitudes) of an audio signal. The circuit is passive and...