405-line television system
The 405-line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting. The number of television lines influences the image resolution, or quality of the picture.
Marconi 405-line mirror TV set from 1936.
A mock-up of a 1930s EMI Emitron 405-line television camera, constructed for the 1986 BBC drama Fools on the Hill
A British Murphy 405 line TV from 1951.
General Electric 950 colour wheel television receiver, manufactured in 1946 for CBS 405-line field-sequential colour system.
Analog television is the original television technology that uses analog signals to transmit video and audio. In an analog television broadcast, the brightness, colors and sound are represented by amplitude, phase and frequency of an analog signal.
Early monochrome analog receiver with large dials for volume control and channel selection, and smaller ones for fine-tuning, brightness, contrast, and horizontal and vertical hold adjustments.
Analog television system by nation
Close up image of analog color screen
A waterfall display showing a 20 ms long interlaced PAL frame with high FFT resolution
