No one doubts the existence of the electronic current, and there is no need to prove it, although the theory of alternating current, based on the assumption that electrons can run in one direction and then in the reverse direction, is clearly erroneous and requires a refutation. To prove the existence of a positron current, it is sufficient to pass the current rectified by the semiconductor bridge through the frame of the magnetoelectric galvanometer in one direction and then in the opposite direction. Both currents will deflect the arrow towards the south pole of the magnet, which corresponds to the charge of the positron.