Using a standard multimeter, this circuit from a 73 magazine for radio amateurs provides an output proportional to the inductance under test. The circuit is TTL and must be powered with 5 V.
This circuit was suggested by Radio Electronics magazine in September 1983 in the new ideas...
We found this amplifier with high input impedance and low capacitance, using FET, in a...
This powerful pushbutton uses a power MOSFET. We found it in a Popular Electronics magazine from...