This small control for DC motors up to approximately 1 A uses an operational amplifier that admits equivalent. The transistor can be TIP29 for currents up to 1 A or BD135 for 500 mA.
This 6-transistor transistor radio was manufactured in Japan in the 1960s. It is a portable...
The figure shows how to generate excellent quality sinusoidal signals using the XR2206. The...
This circuit found in an American documentation from 1964, alters the duration of a pulse and can...