Diodes allow electrical current to flow only one way. When they are placed in a circuit they can be used to convert alternating (both forward and reverse) current into direct (one way) current. This process is called rectification. Ideal to place at the end of track to stop loco running into the buffers.
|Diodes||1N4001 1A/50V, 1N4002 1A/100V, 1N4148 75mA/75V, 1N5401 3A/100V|