Williams Electric Trains Industrial Switchers

Williams utilized former Kusan tooling to produce these four-wheel Industrial Switchers, also known as Mighty Mites. A tuscan brown Pennsylvania switcher was also made (photo requested). The locomotive motors run on three-rail direct current (DC) instead of alternating current (AC). A DC power pack with an output from zero to 17 volts can be used to provide power. Williams included a diode rectifier with these engines. When installed, the rectifier enables the switcher to operate with a three-rail AC toy train transformer. However, use of the rectifier causes the motor to run in one direction only. See this page for a look inside the switchers. Photos courtesy of the B. DeBrooke collection.

Williams U.S. Army Mighty Mite

Williams U.S. Army four-wheel Industrial Switcher.
Included with the Attack Force Army Set and Assault Force Army Set.


Williams NASA Mighty Mite

Williams NASA four-wheel Industrial Switcher.
Included with the NASA Space Shuttle Transporter Sets.


Williams Conrail Mighty Mite

Williams catalog number 45. Conrail four-wheel Industrial Switcher.
Couplers, handrails and horns have not been installed on this locomotive.


Williams Pennsylvania dark green Mighty Mite

Williams catalog number 46. Pennsylvania dark green four-wheel Industrial Switcher.
Couplers, handrails and horns have not been installed on this locomotive.


Williams Pennsylvania blue Mighty Mite

Williams catalog number 55. Pennsylvania blue four-wheel Industrial Switcher.


Williams Pennsylvania blue Mighty Mite sans keystone logo

Williams catalog number 55. Pennsylvania blue four-wheel Industrial Switcher in original box. Note that this variation is without the PRR keystone logo below the cab windows.

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