Thread: 1950s (more like 1970s!!) Zenith on LA craigslist
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Old 03-03-2006, 11:57 PM
Chad Hauris's Avatar
Chad Hauris Chad Hauris is offline
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Yes it would be ultrasonic. The last Chromacolor II's and the first System 3's from around '79-80 used an ultrasonic system with an electronic battery powered transmitter (as opposed to the usual mechanical ones)
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