Nice vintage genuine USA made 3B28 large xenon rectifier tubes. All of them are tested and guaranteed. 3B28 handles up to 500 milliamp plate current at up to 5,000 volts RMS. Various US manufacturers available, please contact us for info on current stock. Offers on this item considered for quantity 50 or more. This item is shipped from Britain, in North America or Asia please allow 2 to 3 weeks for delivery.
For more information: http://www.tubezone.co.uk/pdf/3B28.pdf