Repro of 1949 WCAU-TV Test Pattern
A repro (with film chain calibration approximation to match) of Philadelphia, PA station WCAU-TV (Channel 10) as first put into effect in 1949 and, if based on DX photos taken off TV in the mid-1950's, remained in service up to the point its owner since its 1948 start-up, the Evening Bulletin (whose famous slogan, "In Philadelphia, nearly everybody reads the Bulletin," is excerpted in the lower left quadrant of this TP), sold the station and its AM and FM radio outlets to CBS in 1958. There was some irony to their using certain elements from the NBC test pattern (namely, the shape and positioning of the horizontal and vertical wedges, the positioning of the wedge calibration dots as from the original 1941 rendition of the NBC pattern, and the bullseye), as since 1995 Channel 10 has been owned by, and affiliated with, NBC. As seen in electronics publications and TV servicing manuals of the time (including Radio-Electronics, August 1949).
Repro of 1949 WCAU-TV Test Pattern
A repro (with film chain calibration approximation to match) of Philadelphia, PA station WCAU-TV (Channel 10) as first put into effect in 1949 and, if based on DX photos taken off TV in the mid-1950's, remained in service up to the point its owner since its 1948 start-up, the Evening Bulletin (whose famous slogan, "In Philadelphia, nearly everybody reads the Bulletin," is excerpted in the lower left quadrant of this TP), sold the station and its AM and FM radio outlets to CBS in 1958. There was some irony to their using certain elements from the NBC test pattern (namely, the shape and positioning of the horizontal and vertical wedges, the positioning of the wedge calibration dots as from the original 1941 rendition of the NBC pattern, and the bullseye), as since 1995 Channel 10 has been owned by, and affiliated with, NBC. As seen in electronics publications and TV servicing manuals of the time (including Radio-Electronics, August 1949).