This sophisticated decade of benchtop resistors was found in the November 1989 issue of Radio Electronics magazine. The circuit is supposed to use precision resistors.
This circuit indicates the logical level of a CMOS circuit, extracting the power from the circuit...
Using a piezoelectric sensor of the time, this circuit was found in the February 1994 issue of...
The figure shows how to use an oscilloscope for diode test. The circuit presents the...