Try asking on Paul Stenning's English radio forums. Don't know of this radio being imported into the US so you might have better luck there.
http://www.vintage-radio.com/cgi-bin/yabb/YaBB.pl
Norm
: I need the Mullard model R 1200 U radio schematics. Some model that uses HCH81, HF93, HBC 91, HL 94, HY 90 tubes may help anyway.