This was several months before Philo T. Farnsworth demonstrated his first fully electronic system in San Francisco on September 7, 1927, which did not require a Nipkow disk.
Das war einige Monate, bevor Philo Farnsworth seinen ersten voll elektronischen Fernseher am 7. September 1927 in San Francisco demonstrierte, der keine Nipkow-Scheibe brauchte.