The CIRCUITRON CF-1 is a low cost circuit which is designed to slowly flash a Light Emitting Diode, either red or yellow, on and off. The LED provided with the CF-1 is easily mounted under the roof overhang on cabooses in HO scale or larger. It is also ideal for coupler mounting, if desired. The High Intensity, wide angle LED has a square base with a round dome lens protruding from it. If the base portion is painted black or silver, and the dome flattened slightly with a file, the resulting shape closely simulates a scale EOT device. The CF-1 is designed to be powered by a 9 volt battery and will provide up to 100 hours of flashing from an alkaline type. Refer to the section on HIDDEN ACCESSORY SWITCHES for a listing of switches that can be used to control the CF-1. Because of the relatively high voltage requirements, powering the CF-1 from track power is not practical, unless your layout utilizes command control. In this case, a CIRCUITRON PS-3 Power Supply will convert the track voltage to 9 volts in order to power the CF-1. The CF-1 measures 1” square x 3/8” high.