>As one of the earliest DC motors designs specifically for modelrailroad use to fit between steam loco drivers, this type was almost universal. Still cosidered the standard of comparison, the leading manufacturer was Pittman, who supplied most kit makers with sizes from very small DC-195 to O scale sized DC-91. Some were flat mount as the DC-70 and DC-77. The former was used extensively on better quality Japanese inports. The DC-60 had the commutator next to the magnet. Many clones were introduced with dubious quality and perfomance.
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Diagram showing general structure and flux path.
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Pittman DC-71 angle mount.
