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MULTI-IMPEDANCE ELECTRICAL COMPONENT

  • US 3,665,365 A
  • Filed: 02/08/1971
  • Issued: 05/23/1972
  • Est. Priority Date: 02/08/1971
  • Status: Expired due to Term
First Claim
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1. A multi-impedance electrical component comprising at least one circuit wafer, a plurality of discrete film type impedance elements supported on and bonded to the circuit wafer, said impedance elements being spaced from each other and lying in a resistance path, a plurality of conductive interconnectors having an impedance terminating portion electrically connected to said impedance elements, each of the conductive interconnectors having second portions supported flatwise on the circuit wafer in a desired spatial array, a rotary impedance selecting means assembled with the circuit wafer, the impedance selecting means comprising a conductive contactor and a driver means for selectively moving the conductive contactor in a circuitous path to different preselected contact positions and electrically connecting the contactor to one of the interconnectors, the second portions of the conductive interconnectors being spaced at intervals along an arcuate path on the circuit wafer, the impedance elements being supported on the circuit wafer radially outwardly of the arcuate path and spaced from the circuitous path engageable by the conductive contactor to present wiping engagement of the conductive contactor with the impedance elements lying in the resistance path when the contactor is moved from one of the interconnectors to another of the interconnectors, and an impedance selecting means actuator connected to the driver means for imparting motion thereto.

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