There is no problem controlling as many NPN transistors/ N-MOSFET as you wish. Of course the ground is common that's one of its two other names. The ground is also known as the earth and the common.
Mark
There is no problem controlling as many NPN transistors/ N-MOSFET as you wish. Of course the ground is common that's one of its two other names. The ground is also known as the earth and the common.
Mark