A complete history of station ownership(s) and technical information is available here. Also, saved from the garbage can for the sake of KROY engineering history, here are three Consulting Engineers' statement books. Two are for a frequency change in 1945 and 1947 and the other is for upgrading the transmission site equipment in 1950. And some nice pictures of the 1960s production rooms!
Here is some Technical Stuff
for you Technical Fans!