Abstract
The object 3C390.3 is a well known broad-line radio galaxy (z=0.056), whose very broad emission lines are variable in time (see Veilleux and Zheng 1991, and Dietrich at al. 1998 for references). It is known as the prototypical source of broad double-peaked Hβ and Hα emission lines. In this paper we present the preliminary results of spectral observations of 3C390.3 in 1995–1998 on 6-m and 1-m telescopes of the Special Astrophysical Observatory of RAS.
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