Hello yes somewhere i have a home brew ps for my R-391 ! Never tryed it was told not too.. Ah my Collins came out of Nrl labs in washington d c tag reads 4/1972 cal and repair... Still has USN/NRL property tags on it..It looks like its never been hacked into and plays well..Ijust dont care much for the tuning..Tho you can see where you are.. Iuse solid state NRD535d when i want to be sure im on freg.. Did know others made collins stuff.. I am thinking one day i have the set gone thru and find out if indeed its 100% Collins see you Angelo
