Collins designed and manufactured these transceivers starting in the early 1960s but LaPointe also manufactured them in the 1970s.  Dittmore-Freimuth supplied SMO modules for the URC-32 and also manufactured Collins type mechanical filters for other radios.  Are there other known suppliers of the AN/URC-32 or KWT-6 Type 5 or Type 8 transceivers or parts thereof?

On a similar topic, the OA-1446 receiver-exciter group predates the KWT-6 and was designed under Project Sideband aka Birdcall in the mid 1950s.  This is similar to the automatically tuned 310F-1 receiver-exciter which appears to be a R-761/ARC-58 aka 618C-3 that is repackaged and rack mounted with a motor-generator supplying 115 vac three phase 400 cycle power for the servo tuning system.  Any survivors out there?

Regards,

Jim