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Old 10-29-2013, 08:40 AM
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zeno zeno is offline
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Join Date: Mar 2013
Location: New Hampshire
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I think the JP sets all used ultrasonics but we didnt
see many. Most were low priced sets. It added abt $100
to the price. Zenith sold the most followed by RCA.
Zenith went IR about 1981, I will look & see if I can
find the date. As for last to use ultras its prob one of
the cheapo brands.

73 Zeno
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