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For PM212/ Geared Motors.

40:1 reduction 200 RPM at 3v 400 RPM at 6v

This gearbox offers 6 ratios and 12 different speeds. The unit operates on 1.5 or 3.0 Volts D.C. power sources,either battery or suitable transformer.

100:1 ratio RE385 module motor.

516.1 Ratio RE385 module motor.

5:1 Ratio RE385 module motor.

198:1 Ratio Sub Miniature.

4:1 ratio Sub Miniature.

62:1 Ratio Sub Miniature.

Features: Panel mounted with external control knob, allows infinitely variable RPM to be set on MFA/Como Drills 919D series gearboxes and motors,operates from output O - input voltage,pulse width modulation provides proportional output control, small- compact- robust contruction for a versatility and reliable service. Specifications: