[Milsurplus] [ARC5] Soviet 1RSB-70 copy of the AN/ARC-8, Plus Other TU-4 Radio Sets

[Ray Fantini]

I have had occasion to see three or four US-9 receivers in person and all had the front mounted fuse and two pin headphone jack. I do not doubt the statement about early versions of the radio being identical to the BC-348 but I have not seen this myself and cannot think of any images that I have seen, but that's just me. Also thought the RSB replaced the R-807 with the RSB/RPS combination replacing the older R-807/US-9 combinations. Have seen the RSB/RPS installed in transport and helicopters and in use as late as 1990/2000 but have not seen the R-807/US-9 although I can be mistaken in confusing the RSB with the R-807 but no mistaking the US-9 with a RPS. Have to wonder why the US-9 was still in production years after the introduction of the RPS being that the RPS is superior to the US-9 in all regards?  The RPS uses just about the same tube lineup as a BC-348Q and also includes improved reduction tuning, variable IF filter, second stage audio driver, 100 kc calibrator and my favorite an integrated tube tester. The only drawback is that the RPS uses an external power supply and all I know about were 115 volt 400 cycle external power supplies. Have to wonder if there was a 115/400 cycle power supply to be used with the RSB/R-807?

RF