School selenium rectifier `` VSH-6 ''.Power supplies. Rectifiers, stabilizers, autotransformers, transient transformers, etc.RectifiersThe school selenium rectifier "VSH-6" was produced presumably since 1965 by the Leningrad plant "Elektrodelo". It allows to obtain at the output a constant filtered voltage of 6 V at a maximum load current of up to 2 A. The PV rectifier is intended for experiments in chemistry and physics in schools and other educational institutions. The VSSh-6 rectifier was produced for quite a long time and its design was changed several times.