This may be a later version of the Midget Toy transformer. It has the same voltages and wattage. The model number is not marked on the transformer but is on the box. The 7-position circular slide switch is on the front instead of the top. The note stamped in the top says "100 to 120V. 50 to 133 CY." The line cord is made of two separate wires with black cloth on the outside. These are twisted together and exit the transformer case through a porcelain grommet that says Jefferson 100 1. The other end has an old style plastic two-prong plug supplied with a screw base adapter for a lamp socket. The transformer case is fastened to a square dish shaped bottom plate at four raised points near the corners. The transformer case size is 2-3/4"H, 3-5/8"W and 4-1/16"D. Size including terminals, plate and slider knob is 3"H, 4-1/2"W and 4-3/4"D. Weight is 3.5 lbs For all standard and "O" gauge American Flyer, Ives "O" gauge and Nos. 691, 692, 701,and 711 standard gauge, and Lionel "O" gauge and Nos. 342, 347, 350, 351 and 352 standard gauge.

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