This circuit with output powers of 2 to 3 W depending on the power supply was found in the magazine Radio Electronics of April 1990. The speakers are 8-ohm.
When a pulse of light reaches the sensor [a CDs cell or LDR] the flip-flop changes its state....
Found in a 1958’s publication, this receiver uses components that are nbot easy to find in our...
This circuit is used to test an inductor (coil) allowing the observation of its opration in an R-L...