West Laboratories

West Labs calls these resistors the World's Best because we don't believe you can purchase resistors of this quality off the shelf anywhere else. They are a Mil Spec RN70, Metal Film, 1% Tolerance, 1 Watt, 750 VOLT resistor. We have these resistors custom built for us, by an American manufacturer, in large quantities, and sell them to a number of quality boutique amplifier manufacturers and Hobbyists all over the world! Technical Specs on these West Laboratories resistors are listed below. Technical Specs, West Laboratories Resistors: Watts : 1 Watt Volts : 750 Volts Tolerance : 1 Percent Type : RN70 Ref: EIA RS-186 - All values are noted as percent change in R Thermal Shock : 0.05 Terminal Strength, 5lb. Load : 0.02 Dielectric Withstanding Volt : 0.02 Humidity : 0.20 Low Temperature Operation : 0.03 Resist. To Soldering Heat : 0.04 Short Time Overload : 0.05 1000 Hr. Load Life @ 125 : 0.15 Temperature Coefficients : TC25=025 PPM/C -20 to +85C Resistance Tolerances : 1.0% Lead Material The core material is O.F.H.C. and is electroplated with a coating of 60/40 tin/lead. Note: These resistors are conformally coated and fully protected against moisture by a multi-paint coat system and a hard epoxy outer coating. Marking is alpha-numeric and meets the most demanding marking requirements.