Alliance Manufacturing built antenna rotators starting in the very late 40's through 1992. The "Tenna-Rotor" line was the standard TV antenna rotor for many years, but the drop in demand for over-the-air local services forced them to stop production in 1990. They built the HAM model HD-73 from 1978 through 1992, with a short break in 1990 due to production problems. Continued problems forced them to give up entirely in 1992. Following are several pictures which may help to identify some of their 17 different models. Note : we stock hundreds of parts, both new & used, which are not yet listed on this site. PLEASE NOTE : MOST of the HD-73 parts are no longer available.
HD-73 control HD-73 rotator
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no AMEX !! no AMEX !!