This control circuit or reversible contactor was found in a 1967 General Electric manual. The triacs must be in accordance with the power of the controlled load.
This simple circuit found in an American 80's documentation simply blames if there are toxic gases in...
The configuration shown in the figure is a second order filter (12 dB per octave) with an...
This circuit generates signals controlled by crystal and can generate marks up to 30 MHz of 1 in 1...