Found in an Electronic Design from the 90s, this circuit generates a mathematical function given by the formulas next to the diagram. The basic component is from the period.
In the figure we show a trigger circuit for triacs with a unijunction transistor. The circuit is...
The oscillator in the figure has its frequency determined by the crystal. The indicated value is...
This circuit was found in the November 1959 Radio Electronics magazine; The circuit generates a...