We found this measurement circuit with a logarithmic scale in an Electronics Now from November 1995. The circuit uses an integrated component from that time.
August 2016 - It can be obtained from Mouser Electronics the power factor controller NCP1602 from...
This circuit was found in a Radio Electronics issue from May 1989. Please note that it may not...
This circuit makes use of a PLL 567 and the components must be calculated according to the desired...