We found this circuit with duty cycle adjustment in the May 1988 Radio Electronics magazine. The source must be symmetrical, and the frequency given by R3 and C1.
This circuit generates high voltage for the firing of a xenon lamp. We found this configuration in a 1994...
The circuit shown is from Motorola's 1990 Linear Databook. Shaded components are optional. The...
This amplifier circuit with a low power MOSFET was found in Popular Electronics from the 90s. The...