Stamped circuitry and adjustable rotary switch assembly

A stamped circuitry assembly including an integral metal stamping having a plurality of discrete conductive paths, a dielectric substrate having complementary recesses for receiving said conductive paths,

• the improvement comprising:
• a switch having a table movably mounted to said substrate, with a surface defining at least one path of movement, a contact pad carried on the table and having a tapered leading edge, disposed along a portion of said path, and said stamping integrally including a cantilevered spring beam, a moveable support arm and an elongated resilient finger-like contact means having a contact surface disposed on said path so as to electrically engage said contact pad as said table is moved, the moveable support arm extending in a direction transverse to said path, joined at a first end to said finger-like contact and joined at a second end to said cantilevered spring beam and to screw adjustment means operative to reciprocate said arm in said transverse direction, whereby reciprocation of said arm causes transverse displacement of said finger-like contact, with said finger-like contact engaging said contact pad at different points along its tapered leading edge, to thereby vary a length of the path along said contact pad travelled by said finger-like contact means.