A voltage regulator tube or VR Tube is an electronic component that is used to hold a particular voltage constant at a pre-determined level. This allows an electronic device to maintain the voltage of a power source within the acceptable limits of what can be tolerated by the electrical equipment. In many cases these products are used to protect electronic equipment in which excessive exposure to variations in voltage could be detrimental or harmful. Explore our products below and click on the images to learn more. Have a specific question? Contact one of our specialists today!