Photometric and spectral observations of 7 WC and WO stars were carried
out at the FAI in 2021-2022. On the base of observations we obtained estimates
of the brightness of objects in the BVRc filters and absolute fluxes of radiation
in the emission lines. Changes in brightness within 0m.1 - 0m.15 were detected in
WR 121. Changes in the emission-line fluxes were detected in the spectra of
several objects: WR 4, WR 5 and WR 121.