Analysis of the temperature-concentration dependences of the physicochemical and electrical properties for the MeO-P₂O₅ (Me = Mg, Ca, Sr, and Ba), MeO-B₂O₃ (Me = Ba and Pb), and PbO-SiO₂ glasses, and their investigation conducted by using the Tubandt technique and tracers (stable hydrogen isotope - deuterium) demonstrate that the migration of protons is predominantly responsible for the electric current in these glasses.