Abstract: Paste composition for producing an electrically conductive and solderable structure along with the resulting article are disclosed. Metal particles, metal salts and an organic polymer binder are formed into a paste which is applied to a non-conductive substrate by printing or the like. The paste is heated to permit metal salts to migrate to the surface of the binder where they become concentrated. During metallizing the salts are removed by the bath and metal is deposited in pores formed in the binder by the dissolved salts. The metal layer is adherent to the binder and provides good solderable points.

Abstract: The invention concerns a variable resistor of modular design comprising a using, a resistance element retained in the housing by means of a detent fastener and having a resistance guide way mounted on a carrier, and with terminal contact surfaces on extensions of the carrier, terminal pieces in electrical contact with the terminal contact surfaces, and a rotor rotatably mounted in the housing and a contact element connected for rotation with the rotor and in sliding contact with a collector element and the resistance element.

Abstract: An electrically conductive composition and method for making same is disclosed. The composition includes a uniform mixture of electrically conductive particles comprising pyrolytic carbon doped or coated with a component taken from Group III-VIII elements of the Periodic Table and a curable, non-conducting polymer binder.

Abstract: Method for producing an electrically conductive and solderable structure along with the resulting article are disclosed. The method comprises admixing metal particles, metal salts and an organic polymer binder as a paste which is applied to a non-conductive substrate by printing or the like. The paste is heated to permit metal salts to migrate to the surface of the binder where they become concentrated. During metallizing the salts are removed by the bath and metal is deposited in pores formed in the binder by the dissolved salts. The metal layer is adherent to the binder and provides good solderable points.

Abstract: A layer resistor element for use in a variable resistor has two resistance layers disposed upon each other on an insulating substrate, the lower resistance layer being provided with two comb-like sets of separating slots extending from opposite sides to form a meander-like resistance path, the widths and lengths of the meander turns varying in accordance with a given non-linear resistance characteristic. The upper resistance layer which is of a material of higher resistivity than the lower resistance layer covers the lower layer partly or totally and extends beyond the lower layer at one side thereof where it provides a path for a slider of the variable resistor.