The circuit shown in the figure below is from the 1993 Linear Technology Applications. The operational ones used are uncommon and the use of equivalents can be analyzed.
This digital die circuit was found in an old European publication. The circuit is still viable due to...
This circuit is from a Popular Electronics from 1992. The circuit employs an equivalent transistor and...
This highly-sensitive circuit causes a relay to be closed when the other is open or still...