The perfect alloys for high precision sliding contacts.Our Neyoro 28 series are soft gold-silver alloys with small amounts of other metals added to produce the varying degrees of hardness needed for specific applications. The Neyoro 28 Series are extremely resistant to tarnish and corrosion and have low resistivity and maintain low contact resistance over long periods of service. Neyoro 28 is a binary gold-silver alloy that is softer than either Neyoro 28A or B, but in other respects its properties are similar.

Neyoro 28 was developed specifically as a sliding contact material for use in potentiometers wound with relatively soft copper-nickel resistance wires such as constantan, where a soft contact is desirable to avoid excessive wear of the winding. It is quite ductile in either the cold-worked or annealed condition.