We found this circuit in an old documentation for radio amateurs. The circuit uses an analog indicator. The characteristics of the coils are given next to the diagram.
In the figure we present a circuit that has an insulation voltage of 2,500 V at 60 Hz and...
June 2017 - These new AVX capacitors are suitable for filter applications, considerably reducing...
This circuit is a four-quadrant multiplier using an LM3900. The circuit was found in the July 1988...