I do indeed remember Laskys and the many other Hi-Fi shops in Tottenham Road at that time. As a teenager from the North of Scotland already fascinated by Hi-Fi and a subscriber to 2 or 3 of the many Hi-Fi magazines around at the time, I always made a point of going to Tottenham Court Road when visiting relatives in the London area. My first hi-fi system was in fact ordered from Laskys - a BSR McDonald MP60 turntable, Trio KA2000A amplifier and Laskys Audiotronic Criterion Mk X speakers. Not much of a hi-fi system by today's standards, but I thought it was wonderful, and it eventually accompanied me to my Hall of Residence when I went to University. I'm afraid I can't recollect the name of the salesman who served me, but whether or not it was your father, I recall having a wonderful time listening to systems there. I returned 4 or 5 years later to audition and buy a pair of Celestion Ditton 66 speakers (now they were good in their day), so who knows? I may have met your father.
Another memory of visiting Hi-Fi shops in Tottenham Court Road involved the nearby 'Lion House'. The shop was crowded and a fellow customer bumped into me and apologised for not spotting me. It was only when my brother asked me if I had recognised who it was that I turned round and spotted Michael Caine, who was wandering around the store with his wife. I wonder what he ended up buying?
Good Hi-Fi sounds very much better nowadays, but Hi-Fi was a lot of fun back in those days.