[R-390] Related radio

[K PERALES]

Many of us who used the R-390 in the military also used the Collins 51S-1 for radio intercept for Airborne Radio Direction Finding ARDF.  I would like to know if anyone in this group might have one or more of the 51S receivers in any condition?  There is one of the last working models of the RU-8D plane used by us in Vietnam at the Air Combat Museum in Topeka Kansas that is missing the mission gear we originally used.  Since no one is going to be up flying ARDF any time soon, they would only like radios to be mounted in the plane, not ever powered up.  Since all of the existing versions I have seen of the 51S are AC models, the original radios were all 24VDC.  If anyone out there knows of any radios, working or not, I would be interested in talking about getting a couple for the museum.


Ken Perales