1G3GT / 1B3GT Realistic VACUUM TUBE - GUARANTEED

Realistic 1G3GT / 1B3GT Half Wave High Voltage Rectifier Gold Clad VACUUM TUBE, in box. Part of a large cache of tubes - this one comes from my personal collection of tubes, many dating back to the 1960's or 1970's. This one was purchased at a Radio Shack in Portland, Oregon in about 1971 or 1972, never used. The Gold Clad was a something of a gimmick in my opinion as the pins often need brushing / cleaning before use. Tubes have not been recently tested, but are nevertheless GUARANTEED against DOA. Images do an adequate job of representing the item.