Found in an American documentation from 1969, this astounding circuitry makes a relay operate on 3 Hz cycles. The relay is of the high voltage type of the time.
August 2017 - The new refrigeration sensors for use in batteries, cooling systems of Amphenol...
This circuit was obtained from the February 1992 Radio Electronics magazine. In it, a bar of 4...
This circuit is connected to the inputs X and Y of an oscilloscope to display the characteristic curve of a...