This circuit tests the reverse voltage of power diodes. The transformer is high voltage and so are the rectifier diodes. The circuit is from a 1976 QST magazine.
This amplifier, common in 1986, uses a hybrid integrated circuit that can offer some difficulty to obtain...
Operational amplifiers with field effect transistors at the input are ideal for applications where...
In the figure we have the configuration of a voltage regulator with 3 transistors. The components depend...