Here they exist two regulator circuits, that use the IC L200, as regulator of voltage and current, the company SGS-Thomson, which give these circuits. In circuit Fig.1, we CAN regulate the output vol...
With reference to the above schematIC, the two BC109C transistors are used to make a microphone preamplifier. The left hand BC109C operates in common EMItter mode, the right hand emitter follower. Th...
