Leeds & Northrup “Leeds & Northrup 130031 Voltage Standard/Power Supply” has been added to your cart. View cart Showing all 4 results Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Leeds & Northrup 130031 Voltage Standard/Power Supply $85.00 More InfoAdd to cart Leeds & Northrup 2430-D Reflecting Galvanometer Type E Light Beam More Info Leeds & Northrup 5300 Type S Test Set More Info Leeds & Northrup 5305 Wheatstone Bridge More Info