This midrange filter for sound systems was found in the May 1988 issue of Radio Electronics magazine. The circuit is based on a dual amplifier that must be powered by a symmetrical source.
Found in a documentation from the 90's, this circuit uses only one integrated circuit. The...
With this circuit it is possible to add a conductance scale to a common multimeter. The circuit was...
Many people currently use the bicycle as a means of transportation and leisure in large cities....