The problem of the formation of the d resonances in alloys of Mg and Al with a number of d metals (Ni, Cu and Zn) has been investigated both experimentally and theoretically. High-resolution ultraviolet photoelectron spectroscopy (UPS) spectra have been taken for these alloys and the electronic structure has been calculated by the linear muffin-tin orbital (LMTO) method, within the atomic sphere approximation. The theoretical results allow for the interpretation of the shapes of experimental spectra, while it turns out that the widths of the d bands can be described by the Friedel-Anderson model only qualitatively.