Introduced in 1962 at the Berlin Radio Fair, this has become an iconic Rams / Braun design and quite a collectors’ item, being part of the permanent collection of the Museum of Modern Art in New York.
The set is the single “real” shortwave receiver produced by Braun over quite a long time, it has been used quite often by members of the German diplomatic corps, which explains the “CD” in it’s designation. The T1000 CD was produced since about 1965.
Sketch for T1000 (alternative plans) dated May 29 1962.
I had the extraordinary good fortune to acquire an excellent condition T1000 CD AM FM LW shortwave radio from Joseph Harrell of Dallas in 2008 (1200) with ALL original documentation, schematics, receipt etc intact, imagine! Original owner was the an Attache at the US Embassy in Lagos, Nigeria and he bought this radio from Ing. Karl Marzik in Frankfurt on Oct 11 1968. The tuner runs on 8 “D” cells while a ninth battery is for the lighted display. One set of batteries lasts 6 months on a couple hours a day of listening. My set didn’t come with an AC adaptor.
References:
Here are some use details on the T1000 from Dr. Boesch’s radiopages.
A collection of pictures of the T1000 CD on Flickr.
T1000 service manual (5.8 MB pdf in German) is available on this webpage.
The T1000CD page (with collector prices for members) from Radiomuseum of Switzerland with specs.
An interview of Dieter Rams on T1000 on Youtube
Braun Designs 
Hi there, just looking at your Braun site. Very nice to see, very informative. The radio was my favorite back in 1967 when I first purchased one. We have 10 T-1000’s now, some better than others, including one minty white scale. We now have a few clear doors available too.
Somehow, many people lose the front cover as they put it in a special place only to forget it.
Great photo site and information, just love this radio. Best regards, Paul & Cheryl
Excellent, what a web site it is! This weblog gives valuable information to
us, keep it up.