This negative bias circuit provides negative voltages from 3.5 to 6.5 V sources. The circuit was found in the April 1995 issue of Electronics Now magazine.
This traditional configuration of astable was found in a 1965 documentation. Transistors can be...
This variable frequency oscillator generates signals that have a recurrence frequency determined by...
This is an old circuit, using operating equipment of the time, modern operational amplifiers can...