This circuit, which appears elsewhere in this section, is from a 1969 Electronic Experimenter Handbook. The circuit uses components that are still common.
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...