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, from an old 1988 publication, generates bars on the screen of an old analog TV for...
This circuit is from a Popular Electronics of the 90's. Any power MOSFET can be used. The circuit...
April 2017 - The new Maxim Integrated MAX20733 and 20745 switched regulators are available from...