F I R S TP R E V299NEXTLAST

Green Street Lab, Telegraph Hill
This building is the most significant historical site in the world! OK, well maybe not, but in this building at the base of Telegraph Hill in 1927, Philo T. Farnsworth invented the television. He broadcast the first video signal, here from his second floor lab, half a mile away to the Merchants' Exchange Building. A year later the "Genius of Green Street" improved the signal of his "Image Dissector" from 60 lines per frame to 400. Unfortunately Farnsworth would spend most of his life fighting RCA for the royalties they owed him, finally winning his suit decades later. Some related notes - San Francisco-born, Charles Ginsburg, invented the first videotape recorder and TiVo was also developed in the Bay Area. I'm still researching microwave popcorn.
[ MAP E-15 ]