[R-390] NASA radio

[Steven and Michelle]

Hi all,
         I have a standard Motorola R390a receiver, not an R-1274. It has a label above the Motorola badge with the NASA symbol on it, serial no. and property of Goddard space flight centre. It was used at the Canberra tracking station during the Apollo missions. On the top vertical edge of the readout is "Receiver No. 2". On another posting on the net (Thought it was in the Premium-rx arcives but can't find it now.) an ex NASA employee said that the R-1274 was made for the navy and NASA aquired a few but found the Manson Labs mods unreliable so they used only standard R390a's. He also said that they weren't used for tracking or to measure doppler shift. I am no expert on these radios by any means but I seen a few claims on the web that the R-1274 was built for NASA or are NASA radios. If they were, unless removed, should also have the NASA label on them one would think. Not claiming all this is right just curious. Would like to find the posting.
                                                          Steve. vk7fxxx