We found this circuit in an old oscilloscope publication. With it, it is possible to observe the B / H curve (hysteresis) of an inductor in a common oscilloscope.
This circuit was found in a 1995 documentation and is very simple to assemble, as the components are...
Found in a 1964 magazine, this is a small headphone amplifier from 500 ohms to 10 k ohms (magnetic...
This circuit was found in a 70's American schematic. It can be used for several purposes such as...