We found this circuit in a 1966 US documentation. It simulates a variable capacitor that can vary capacitance from 1,000 to 1. Transistors are general purpose types.
This circuit was found in the February 1970 issue of Radio Electronics magazine. The integrated circuit...
This circuit came out in a publication called Electronics Handbook of 1993. The circuit triggers an...
This amplifier uses hybrid modules Sanken and can provide powers of 10 W or 20, depending on the...