This circuit was found in Intersil's documentation from the 70's, being indicated for powering operational amplifiers. The circuit divides the voltage from a single source.
Found in a Popular Electronics from the 90s, this circuit triggers an indicator when these lights...
This common circuit using a multivibrator causes two lamps to alternately flash at a frequency and active...
This 80s signal follower makes use of an audio amplifier of the era. The circuit can be adapted to...