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A motor-driven booster made by the General Electric Company. A booster is a motor generator (MG) set that regulates voltage in DC circuits. M is the shunt-wound motor, B is the series booster, and S is a shunt across the field of a booster. t is a switch

Motor-Driven Booster

A motor-driven booster made by the General Electric Company. A booster is a motor generator (MG) set…

"Series wound dynamo, used for series aarc lighting, and as a booster for increasing the pressure on a feeder carrying current furnished by some othe generator." — Hawkins, 1917

Series wound dynamo

"Series wound dynamo, used for series aarc lighting, and as a booster for increasing the pressure on…