Greetings, I was cleaning out the computer and came across the following document. Interesting photos of a couple of R-390A's in a commo shelter. If I posted it here ages ago and forgot, you are all welcome to make fun of me as I now begin to enter the old buzzard stage in life. http://www.nro.gov/history/csnr/programs/docs/prog-hist-03.pdf John Flood KB1FQG