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Published online by Cambridge University Press: 23 September 2016
Results of the patrol observations of the EV Lac flares in U, Hα and Hβ bands are given. The observations are carried out simultaneously in U and Hα or in U and Hβ. During (U, Hα) observations 21 U -flares are registered of which only comparatively strong one is accompanied by a real Hα - flare. And during (U, Hβ) observations among 7 U-flares the strongest and a “slow” one is accompanied with an increase of Hβ -signal. Small amplitude periodic light variations of EV Lac are detected with a period of 3d. 3 and amplitude 0m.02 in B and V bands.