Using junction FETs, a configurable configuration is achieved for very low frequencies. FETs can be of almost any type and the frequency depends on the capacitors.
This traditional transistor source uses only two transistors found in a 1998 documentation. The...
This circuit is from the 1977 RCA Linear Integrated Circuits Manual. The circuit has a...
In the figure we show a means of changing the output voltage of a fixed regulator, such as 7805 or...