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.
This filter, from an audio publication from 1977, passes the frequency range corresponding to the...
In the figure we have three voltage doubler configurations that can be used in high and low...
This circuit was found in Motorola documentation from 1966. The lamps are according to power and...