The output voltage of this circuit is approximately four times the supply voltage. The circuit is from an Electronics Now April 1995. The output current is very low.
The circuit, shown in the figure, consists of an audio oscillator that generates signals between...
This circuit was found in a 1992 PE Hobbyst. The circuit detects the presence of spy...
This circuit produces low power flashes in a LED. Frequency is adjusted by P1 and depends also on...