This view shows the transmitter operator's position at the General Electric station in Oakland. From this position, the operator monitored the audio modulation level during every broadcast. At left is the main power control panel, which connects with the generators in the generator room. In the rear of the room are sections of the main 7,500 watt transmitter. The cabinet to the right is a dummy antenna.
Here is a slightly different view of the KGO transmitter room.