This circuit was found in the September 1993 Electronics Now magazine. It is based on the 555 and powers an audible indicator.
When the switch S1 is pressed for a moment, the motor receives the voltage of B1 more, adding to...
We found this circuit in the December 1994 Electronics Now magazine. The worthless components are...
This circuit is the receiver for the previous remote-control transmitter. We found it in the same...