Matched pair of vintage 6P6S ((6П6C)) tubes from manufacturer Reflektor, Saratov (RU). Tubes were tested and measured with professional analogue tester L3-3. We have picked the tubes with the closest characreristics (please look at the samples in the gallery). The 6P6S (6П6С) output beam tetrode was designed for amplification of low frequency power. It is direct replacement for the 6V6GT or 6V6 from the former DDR (GDR). It replaces also the chinese 6P6P normally (without any mechanical adjustments). All of the available tubes are new in box with original datasheet included. Boxes are still in nice shape too with some longer storage marks, like oxidated staples (please look at the gallery pictures for more details). Year of production:1980.