This very low current circuit was found in the April 1995 issue of Electronics Now magazine. The circuit operates at voltages from 6.5 to 10 V.
This circuit was obtained in a Radio Electronics of the 90s. The circuit uses an integrated circuit...
This is the traditional configuration of na Astable Multivibrator using two NPN ttransistor....
Found in the 1995 Encyclopedia of Electronic Circuits volume 5, this circuit has a constant...