Three gel systems formed by gelling N2H6SO4 or KH2PO4 or NH4Cl with sodium metasilicate have been electrically and structurally characterized. Highest conductivity similar to 10(-3) S/cm is attained at room temperature. Mobility, transference number and conductivity has been measured as a function of temperature and correlated with DTA/TGA studies. Principal charge carriers are H+ and OH- but a part of Na+ also becomes mobile, particularly at high temperatures.