10/30/2026
KLS was a pioneering Bay Area station launched by brothers Stafford and Eugene Warner (no relation to the movie studio). They were amateur radio operators who ran a radio parts shop. The amateur station operated from the shop and eventually became a commercial station in 1922.
The Warner brothers spent $30,000 to build their innovative “Radio Village,” and moved KLS there in 1937. Eleven cottage-style shops around a central courtyard housed the KLS studios, offices, and the brothers’ radio supply store. The station’s 250-watt signal was boosted to 1,000 watts at the new location.
KLS changed its call letters to KWBR (for Warner Brothers Radio) on September 10, 1945.