Re KSDJ, I happened on a garage sale about 12 years ago being run by the heirs of a fellow who had been an engineer for KSDJ, I bought a couple of the huge records used for transcribed shows back in that day and got them home and lo, no turntable huge enough to play them. The heirs said the fellow had been responsible for setting up the KCBQ transmitter at Santee almost 50 years ago. The labels say KSDJ 5,000 watts day, 500 watts night, I guess that would have been from their site about near SDSU. KSDO used to run 5 & 1 from a site near Westgate Park, where Fashion Valley is now, with buffalo roaming around the site.
Lopaka: You have historic recordings which are extremely rare. KSDJ was of course the precursor to KCBQ. At the time the studios were at 5th & Ash. KSDJ was owned by the San Diego Journal newspaper. You need a 16 inch turntable to play the ET's. SOmeone should be able to put you in touch with an public or private organization which could dub those transcriptions. I'm sure we would all love to hear the content.