NSAW Nsaw Resistance Box .1 to 10 ohms Lab Resistance Box

We National Scientific Apparatus Works Are Offering Resistance Box Plug Type Range .1 to 10 Ohms Superior Quality Heavy Brass Metal Blocks Are Bound To Bakelite Plate By Means Of Nuts And Screws Securing Rigid Fixation And Eliminating Any Chance Of Contact Error Creping Due To Loosening Of Plugs And Lugs Which Are Cut To Fine Taper And Are Interchangeable. Plug Heads Are Machine Moulded, Of Heavy Insulated Bakelite In Beautiful Shapes. The Boxes Are Made Of Teak-Wood And Nicely Polished.Great Care Is Taken In Preparing The Wire Wound Resistance. Selected Double Covered Eureka Wire Is Wound In Bakelite Spools. Sufficient Ageing And Heat Treatment Is Processed Through To Avoid Any Moisture Effects. Solder Joints Are Sealed After Calibration. All Resistors Are Calibrated On Imported Testing Bridge Accuracy ± 0.1%.