I was a Vice President for Califormula, and a newscaster on their English language Jammin Z-90, over the course of about 10 years.
At it's peak it was Radio Latina and Fiesta Mexicana (which later became Hot Country 99.3) in Spanish, Jammin Z-90 in English, and "XLNC" classical with mostly English announcements. It also included Califormula Publishing (we did two books and worked on a few others that never came to fruition).
The main offices were in Chula Vista, with transmitters in Tijuana. Most of the ad sales were in the US and overall the operation was very profitable for Victor and his wife: somebody left a floppy disk in a computer I was working on and it had some numbers
When Jacor (later Clear Channel) came to town, the always eccentric Victor got very paranoid and even suspected they'd sabotaged his car. He spent a lot of time (and money) on his dislike of that company (Victor shelled out lots and lots of money to consultants for such projects).
Eventually though something made him decide to sell: Clear Channel got the programming rights to all but XLNC and they found a new Mexican owner for the transmitters. As best I could learn, the Diaz family got somewhere around $40-60 million. Based on numbers I had seen, they were making well over $4 million a year in after-tax profit in the 90's.
Victor died in 2004 at age 62. The family kept XLNC Classical going - Victor started that (first as an online station) because he loved classical music and hated San Diego's then classical station. They also kept the Califormula building just west of I-5 along San Diego Bay at the Main Street exit in Chula Vista. The building also houses Victor extensive color photography collection under the banner of the International Institute of Photographic Authors (many of us Califormula employees spent as much time on that as we did on the radio business).
Califormula also included various websites Victor wanted, including FECHA, the First Electronic Church of America, unchanged since perhaps 1996: http://fecha.org/
(I wrote many of the bios on there).
Victor was a big proponent of technology and we had internal computer networks, and later websites, long before most San Diego broadcasters.
Califormula still exists with XLNC and the Chula Vista building, stuck in a time warp really since 2002.