ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Transistors and diodes on a printed circuit board. Diodes (small, cylindrical) are electronic components which allow current to pass in only one direction on the circuit board. Transistors (large, black) have three wires attached and are used to amplify current between two of these, while the third determins the amplification.
Model release not required. Property release not required.