Eugene..

I have a TCX xmtr I got almost 40 years ago and it's taken me that long to find the matching rcvr RBD and both dynamotor supplies for the xmtr and rcvr. What's interesting to me is this one is also missing the cover , like mine, for the the xtals there on the left where the 4 large holes are. I made a cover for mine and will have to get it painted and a silkscreen made to get it labeled.

 If you go to WA7YBS's excellent web site

and scroll down till you come to :

WW2 Communications Equipt Part 1

click on that  and when it takes you there scroll all the way down till you see the RBD rcvr and my TCX & RBD.

You'll notice the partial resemblance of the RBD to the RAX rcvr. 

Paul 

N6FEG