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Results of photoelectric observations of TT Ari during the 1985{1994 interval are presented. Observations were carried out at the Rozhen and Belogradchik observatories as part of our programme for the study of anti-dwarf novae. The long-term light curve in the standard UBV system is constructed and peculiar- ities of the long-term behaviour of the star in this time interval are discussed. 21 moments of maxima and 14 mo- ments of minima are added to the list of known maxima and minima of 3.2-hour modulations. The period of 3.2- hour modulations during the 1987/1988, 1989/1990 and 1990/1991 seasons is determined. In our 29 observing runs we searched for 20-min quasi-periodic variations, which were detected in 25 of them. Our results show that in 1989, the 20-min modulation mean period reached a lo- cal maximum of 19.45 min and declined afterwards. The mean brightness variability analysis during the aforemen- tioned seasons conrmed the reliability of the 3: d 8p eriod suspected by Semeniuk et al. (1987).

TT Arietis: Photometric variability from 1985 to 1994