Sweeetbobins wrote: ↑18 Oct 2020, 14:32Difficult to get a decent photo with its glass front, but one mercury arc rectifier (circa 1947) at Amberley today It was still in use until 2005 at the battery charging station at Croydon 'B' 33kV substation. The last one I saw in use was still powering one of the lifts for a London Deep Level shelter about 10-15 years ago.
I'll be reading that with great interest later this evening PeterPeter.N. wrote: ↑18 Oct 2020, 12:55For anyone who is interested I wrote an article in 'Television' magazine in the '80s about the early days of TV, its largely a technical one so may not interest many but I will put a link in in case.
https://worldradiohistory.com/UK/Practi ... 998-05.pdf. Page 478, or Page 24 in the search guide
I have many happy memories of Television magazine from my teenage years For me it was essential reading!
So much so that I had it on subscription from about age 12...