ndnchf,
I just happened to cut out the Radio Refernce Guide from Generator & Distributor. The radio for 1940 is a 5 tube "Universal" radio that fits car or truck. The model number is 985538. I have a search setup in ebay waiting for one to float by. They do come up but not very often. Out of the two I have seen, one was perfect and brought a price over my budget, the other was barely recognizable as a radio and would qualify for IRWIWP for radios.
Bill Schickling