This circuit uses components that are still common despite being from 1995 documentation. The circuit can be powered by 6 to 12 V voltages and the speed of the LEDs' sliding effect is set to P1.
Found in a Popular Electronics this circuit has double regulation. The integrated circuits used...
Suggested by an Electronics Now magazine from April 1994, these circuits can be used as output...
This simple SCR alarm circuit was found in an old Poptronics, but can be easily assembled as all...