DIAL ASSEMBLY FOR TELEPHONE SETS

摘要

DIAL ASSEMBLY FOR TELEPHONE SETS In a pushbutton telephone dial, the originally provided switch member having a plurality of domed spring metal contact members which snap down to make contact is replaced by an elastomeric member. To enable the remainder of the original assembly to be used, an adaptor member is positioned on the circuit board having the original switch positions. Contact members on the bottom surface of the adaptor make contact with contact areas at the original switch positions. Contact members on the top surface of the adaptor form new switch positions suitable for the deformable switch contact members of the elastomeric member. The contact members on each surface of the adaptor are interconnected, for example by plated through holes.