Philo Farnsworth tested his tube at his lab in San Francisco. Together with his team, he transmitted an image of a simple square that he asked his lab assistants to rotate. His journal reflected a calm response to what at the time was a major success. He had developed an essential component of the electronic television. They “sent a wire to Gorell in Los Angeles: THE DAMNED THING WORKS!” (Fisher, 250-252). Clearly, there was at least some excitement.
For other milestones in the development of television, see:
Source: David E. Fisher and Marshall Jon Fisher, Tube: Invention of the Television (Washington, DC: Counterpoint, 1996), 250-252.