If memory serves (well, the auction was nearly a week ago), I think they were used at ?Teddington? and converted several times, once to 405 and later to 625 PAL.
Looking in the back, there didn't seem to be much there, though that 22" screen is a real monster (I've seen CRT's whose screen was smaller than the neck of that tube!). The mains transformer was also a monster too, wonder how they stopped it interfering with the colour ?
There was very little interest in them during the auction, I guess most people were put off with the sheer weight and bulk of them as well as wondering what on earth to do with 'em (and besides, I already had a Decca 131 back projection set and a certain Ekco
in the back of the little Honda).
TTFN,
Jon