Tannoy Micro TM55DD turntable

My niece who is crammed into a small apartment in Manhattan with her husband and two young kids, was gifted one of these TTs.  She knows nothing about audio but wants to be able to play records.  Turns out, these units were made by Micro Seiki and marketed under the Tannoy brand in the US for only one year (ca 1975), and it is impossible to find an owners manual on line.  I am helping her to figure it out via videos she is sending me here in Bethesda, MD. Remarkably, the thing seems to work in that it spins at 33 and 45. The built on strobe light is not working, so we cannot verify exact speed but it is stable and the TT is quiet.  I read in one blurb on line that it contains a built in phono stage, but I am doubting that because I cannot see any volume control or any other of the normal controls for a phono stage, in her photos and videos.  Can anyone help to expand my knowledge of this piece?  If it works, she got a bargain for zero dollars. If it has a phono built in, even better.