Now that Jeff H. has kindly enlightened us on some aspects of the IRT subway car High-voltage controllers, I'll drop the question about the High-V cars on the Manhattan els. Did they also have that sprung "clockwork" controller that a motorman could wind up and the controller itself would do the notching up, point by point in the master controller, not the control groups under the cars? or did the el cars have, as I thought all High-V's did, [but didn't] controllers that needed a motorman's vigilance in notching up, point by point, skillfully.?[or trip the overloads if they notched too fast]. For the younger set there were High-V and Low-V on Manhattan els too. The Low-V versions being most of the last survivors, most of the l909-ll group were converted to Low-V in later years. [1660-l8ll with exceptions.]