Vintage full-wave rectifier PV200/600 (200mA/600V) from Tungsram in original boxes. Direct replacement for Telefunken RGN2004. Great tube for your DIY amp projects. All available tubes were made in 1956 (e9 or m9 code). Printing, which is situated on the top of the tube, is not complete on most of them (please see the gallery). New old stock tubes in original boxes. Tested.