I mentioned in another thread about the humongous power transformers some early Canadian TV's had. Toronto was 25 Hz up until about 1952. Hence the power transformers they employed were pretty big.
I spotted on the Toronto Craigslist a Toronto made Motorola set. The rear view of the set is interesting: there appears to be an outboard power transformer located at the bottom rear. You can make out some heavy cabling going from the transformer to the chassis.
I recall some older Canadian sets assembled from a US chassis which had transformers too big for the chassis. But I do not recall seeing the transformer mounted elsewhere.
http://toronto.en.craigslist.ca/tor/atq/2691715215.html