This sensitive 5-band circuit was found in a September 1995 issue of Electronics Now magazine. The headphones, for greater sensitivity, should be high impedance.
Found in an Electronic Design from the 90's, this circuit uses common components. The circuit is...
In the figure we have two circuits of limiters that provide the cut of the negative peaks of a...
This circuit converts 12 V to 127Vac to power small electronics in the car. It was found in the...