The transistor in this project found in the July 1994 issue of Electronics Now magazine can be any general-purpose type. The circuit is powered by the relay voltage up to 12 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...