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Blaw-knox Tower




's transmitter just south of Uptown Charlotte, North Carolina .]]

The Blaw-Knox company was a manufacturer of steel structures and construction equipment based in Pittsburgh, Pennsylvania . The company is today best known for its Radio Towers , most of which were constructed during the 1930s in the United States . Although Blaw-Knox built many kinds of towers, the term '''Blaw-Knox tower''' (or radiator) usually refers to the company's unusual "diamond cantilever" design, which is held upright by guy wires attached only at the vertical center of the mast, where its cross-section is widest.

Many Blaw-Knox towers, of both conventional (uniform cross-section) and diamond design, remain in use in the United States . Few of the diamond towers were built, and several remain; all transmit AM Radio signals:

Several additional such towers are in use at stations in California but are less well-known.

The following Blaw-Knox diamond-cantilever towers remain standing in Europe:


BLAW-KNOX TOWERS IN CULTURE

The design of Kamzik TV Tower may have been inspired by Blaw-Knox Towers. In comics and Animated Cartoons guyed radio masts are often drawn as Blaw-Knox Towers.


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