I'm finally beginning the restoration of my RCA 21CT55. I had intended to begin it about three years ago after I restored some vintage test equipment. Then I ran across Phil's excellent restoration web site. Then I found the Early Television Foundation site and realized my set was kinda rare. I had always thought it was special, but I had no history of early color TV development to know how few were made and that it was based on the CT100 CTC-2. Then I found Videokarma and learned how much I did NOT know about restoring old TVs. The depth and breadth of the knowledge of the members is a treasure. SteveK sent me a copy of the 21CT55 RCA Service Clinic document that is very helpful. I then decided that instead of starting with the 21CT55, I would warm-up with early B/W sets that I was extremely happy to find were actually available. I studied all of Bob Andersen's YouTube restoration videos and learned a lot. So I hunted, bought, and restored a RCA 721TS, a Dumont RA-103, and a RCA 630TS. I mixed those restorations with a Zenith 6S321 Stars-and-Stripes radio that I have used since the 60's, a 1931 Philco Model 90, 1928 Atwater Kent Model 49, and a 1924 Atwater Kent Model 20 radio. As I learned, I picked up additional test equipment along the way. Here is a picture of my restorations arranged in my living room with my 21CT55 waiting patiently. And a few pictures of the 21CT55. Its time has come.
Dave