In the figure we have the way to obtain 500 gain from a FET. FETs can be BF245 or MPF102. The circuit is from the 1977 National Semiconductor FET Data Book. Power supply depends on the application.
This circuit was obtained in an English magazine from 1978. We can easily assemble it because all...
The dual operational used in this sound effect that separates the signal into two tracks is not...
Suggested by General Electric in 1965 documentation this circuit is intended for the 120 Vac...