The LM109 integrated circuit has been manufactured by many semiconductor industries. The circuit shown here is from Motorola's 1990 Linear Databook. Both the transistor and the integrated circuit must be mounted on heat radiators.

The LM109 integrated circuit has been manufactured by many semiconductor industries. The circuit shown here is from Motorola's 1990 Linear Databook. Both the transistor and the integrated circuit must be mounted on heat radiators.