I'm well aware of how the KGB Archives came to be, and that John was the guy who had salted away literally thousands of items over the years. :>)
For some reason I had the impression that they were in his posession following his extrordinarily ill advised termination by CC. I can say from personal observation that there were dramitically fewer boxes in storage at the transmitter site last fall than was previously the case. I would personally like to see John write a book about his quarter-century-plus at KGB. As the stations' institutional memory, there is no one more qualified. (And, given John's powerful intellect and dry sense of humor, it would probably be a terrific read...)
When the plug was pulled at the Engineer Road building a substantial amount of material and equipment was moved to a storage unit in Kearny Mesa as well as to 52nd Street. Interestingly, it was the Jacor Engineering crew who saved the music library, (literally tons of vinyl), which wound up at Emerald Hills Programming wanted the CD's, but had no interest in anything else and abandoned thousands of LP's EP's and singles to the debris boxes and demolition crew...