This high impedance amplifier is from 1985 documentation by General Electronic. The amplifier with FET at the entrance is from the period and the source is 9 V.
This output step with a transistor can be used in experimental radios and intercoms or as a signal...
We found this circuit in the October 1991 issue of Radio Electronics magazine. The circuit uses...
We found this circuit in the June 1984 issue of Radio Electronics magazine. The circuit uses an...