The integrated circuit used in this application is uncommon today. The circuit converts capacitances into voltages from 1 to 10 V for a capacitance range from 10 uF to 100 uF.
This distortion circuit was found in an American publication from 1970. It can be assembled with...
This circuit was found in a 1978 English magazine. It is a configuration that aims to select the...
This medium wave radio must use a high impedance piezoelectric, crystal or magnetic phone and the...