This circuit was found in a 1964 Electronic Design. The transistor may be a current equivalent of general use. The frequency ranges from 100 to 150 Hz.
This circuit was found in the July 1969 issue of Radio Electronics magazine. It also appeared in...
This circuit can function as a high-power shield completely isolated from the power grid. We found...
This circuit has as a critical component the transformer that has low voltage windings for the...