I'm personally trying to track down a TK-41 in Australia though only mainly have the internet as an info source to work with. My mate James found this pic of a TK-41
http://www.slv.vic.gov.au/hwtports/0...hp004692.shtml . According to the source of info
http://nla.gov.au/nla.cs-pa-HTTP%253...HP004692.SHTML this photo was taken at St Vincent's Hospital, Melbourne, Victoria in 1965. I've noticed this TK-41 type camera has a modified tilt adjustable Marconi MKIII type viewfinder.
Apart from that the other early colour cams we had in the 60s was an EMI-204 3 tube vidicon colour camera which was for demos at Powerhouse Museum in 1965
http://www.powerhousemuseum.com/coll...se/?irn=249192 and on 15th July 1967 ATV-0 used TK-42s for an experimental colour broadcast of a horse race in Pakenham, Victoria
http://www.oldradio.com/archives/har...tk42(atvo).jpg .
I can imagine that TK-41s were used over in Philippines as they started colour in 1966 and TK-41s were the main colour camera back then alongside with Norelco/Philips PC-60s, so I tend to wonder how many may be in existence over there.
Lastly I hope Chuck will be able to get his TK-41 going, will be awesome to see one in action again and be compared with a modern CCD camera, will be interesting to put two side by side and and do a comparison hey.