This circuit is from an ancient American documentation. The integrated circuit is 741 and the power supply must be symmetrical. The passing band is centered at 1 kHz.
The signal injector illustrated in the figure uses a single integrated circuit and generates...
Motors up to 2 A DC can be controlled by this circuit that we find in the manual for linear...
Place the lamp on the ignition threshold via R2. Your approach causes it to light up. The secret is...