This circuit was found in the July 1969 Radio Electronics magazine. The circuit controls resistive loads and universal motors with power according to the SCR used.
This CMOS circuit with the 4011 can be used in an infrared remote control. The circuit can be...
This circuit was suggested by Popular Elecronics from the 90's. The circuit has high input...
This circuit has a high input impedance and uses two transistors quite common in the market. Its...