This 1988 circuit makes a back-and-forth of LEDs whose speed is controlled by P1. All components used are common and the circuit can be powered by voltages from 6 to 9 V.
Using a high-power operational amplifier, the maximum output current for this circuit is 4 A. The...
This amplifier uses only one Darlington transistor as an amplifier and can be used as a...
This configuration with FET and Unijunction can be found elsewhere on this site. The JFET admits...