The configuration shown allows to obtain a high voltage gain for FETs. FETs can be BF245 or MPF102. The circuit is from the 1977 National Semiconductor FET Databook.
The components of this filter are calculated using conventional formulas (see mathematics section of...
This circuit provides both frequency and voltage division. The circuit was found in a 1966...
This circuit is implemented with operations that are not common today but can be assembled with...