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Multi Ratio Gearbox£6.25This 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.
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Panel Mounted Variable Speed Voltage Regulator£14.54Features: 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: