Apparatus according to Voldemar Raghel's method, Kyiv

In this version of the device according to the Woldemar Ragel method, instead of 9 Volts on the electrodes - 90 V, which eliminates the need to apply a positive electrode to the mucous membrane, mainly to the tongue, now it is enough to simply hold it with your hand. The passing current is stabilized and can be adjusted in the range of 20-200 μA.