1948 Zenith - USA
(CBS Mechanical Field-Sequential Color)
Peter Goldmark was a young Hungarian television engineer who worked for CBS beginning in 1936. He had a Ph.D. in physics and pursued the concept of mechanical field-sequential color television in the CBS labs. This system used a spinning tri-color (red-blue-green) filter wheel in front of a cathode ray tube -- to reproduce the colors seen by the camera lens.
On January 31, 1946, a prototype of this system was demonstrated to the FCC (Federal Communications Commission). The FCC was impressed with the quality of the images, but were hesitant to go ahead with the commercialization of color.
RCA waged a public battle against CBS, pointing out that the mechanical system of spinning color wheels was incompatible with existing black & white sets, and that a compatible all-electronic color system would be best for the public (which they were researching).
On January 30, 1947, the FCC proclaimed that the CBS system was premature, and would require further testing before it could be approved. RCA proceeded to flood the market with black & white sets, knowing that each set they sold would make it more difficult for CBS to bring their system to market. Owners of B&W sets would have to purchase bulky and expensive ($100+) adapters to receive the CBS color pictures.
In 1948, Goldmark was approached by the pharmaceutical house of Smith, Kline & French, with a proposal to use color television as a teaching tool for surgery. Goldmark accepted, and on May 31, 1949, the first live operation in front of color television cameras took place at the University of Pennsylvania. In December 1949, the Goldmark team took this system to the American Medical Association's annual meeting in Atlantic City.
Operations taking place in Atlantic City Hospital were televised to 15,000 viewers (1,000 at a time) in the convention hall. The response from viewers was tremendous, and some people were fainting, when they witnessed the realism of surgery delivered through the power of color images.
The 1948-built Zenith color television set you see above, was one of the 20 specially-built receivers for this medical demonstration. The screen size is a mere 16 inches diagonally. This unit is marked serial number 16, and is part of the television-set collection in Dunedin, Scotland. [Click photo above to see chassis view]
1949 Magazine Article "Surgery In Color Television"
In 1955, Mr. John Mackenzie was appointed to the position of television director for the Smith Kline & French (now Glaxo Smith Kline) closed-circuit medical color-TV unit #2. He held this position until 1958.
John contacted me, to let me know about his web pages on the SK&F Medical Color Television Unit. He provides an insider's view of the history, equipment, and operation of this pioneering group. John has also posted more than a dozen photographs, taken from 1954-1956, of the early mobile color television system, which gives you a pretty good idea of what it was like back then.
John also provided the following comments in a January 2003 e-mail:
I believe Peter Goldmark gave the
surgical boom camera to SK&F in 1948 or 49. The studio cameras were added during
the next several years.
My sincere 'thanks' to John for sharing his knowledge and information. If anyone has further details on this subject, please contact me.
See another Hospital Color System of 1953
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