A type of control in the console for turning on stops or couplers.

A type of control in the console for turning on stops or couplers.A type of control in the console for turning on stops or couplers. It is like the original mechanical type of control, in which a knob on the end of a shaft was pulled to turn the stop ‘on’ and pushed to turn it ‘off.

The modern type is electric, and except in very small organs, they are usually arranged on either side of the manual keyboards on panels called Side Jambs, arranged for the organist’s convenience.