Document Type and Number:
Japanese Patent JPS5149303
Kind Code:
B1
Abstract:
An improved control device for use in volume adjustment of a multi-speaker sound system is provided with means for simultaneously adjusting the volume of some or all of the speakers in the system. A plurality of variable resistors are mounted on an insulating substrate, the effective resistance of each resistor being adjustable by sliding contact means.
Application Number:
JP377371A
Publication Date:
December 25, 1976
Filing Date:
February 03, 1971
Export Citation:
International Classes:
G01V1/09; H01C10/16; G05G9/047; (IPC1-7): H01C10/16; H04R5/00