Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This circuit was presented in a January 1990 Radio Electronics magazine article as part of a home...
This nonlinear gain circuit was found in a 1965 Electronic Design. The configuration can be used...
Found in a 1965 Electronic Design, this circuit divides the frequency of a 50 MHz signal by 2. The...