Arnaud
You are more likely to get details or copies of the technical books or AP's (Air Publications) here:
http://forum.keypublishing.com/index.php
Meanwhile, the TR9D is listed in AP1186 as being from single seater aircraft. (Transmitter: the 10D/10472 and reciever: the 10D/10471) The TR9D itself should be
10D/10470. It should not be 10A. If it is 10A, then I can only think this to be a variation of the 10D which (might!) be related to the Battle, perhaps?
For multi-seat aircraft (I would have thought thats the Battle, too?) it would have been the TR9F with the R1139 and T1138.
Night Fighters: TR9G
Bombers: TR9H
Coastal: TR9J
Gliders etc: TR9K
Hope this helps a little?