This interesting circuit of an Electronic Design stores the highest voltage of two applied to its inputs. The circuit is from 1964 and can be adapted to use modern components.
The supplied circuit allows direct control of a small DC motor up to 250 mA. The basic component used...
This frequency band below 15 kHz converter was found in a Popular Electronics from the 90's. The...
If you have a common analog multimeter, you can increase its input resistance in the measurement of...