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I dunno-I talked to the other day a guy who is one of the "Deans" of R-390/R-390A repair/restoration, Rick Mish, & he gets R-3XXs in from all over & the way HE cleans 'em up is disassembles 'em, puts 'em in his basement sink, puts some Dawn or other degreaser on 'em, goes after 'em w/a scrub brush, rinses 'em good, either leaves 'em in the sun for a day or 3, & don't fool w/'em til until the 2-3 days are up. Of course, R-3XXs are stainless, brass, aluminum, just a few washers are steel that can rust. TVs, especially likely Sixties toob portables, were prolly NOT designed to be so vigorously cleaned like that..
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Benevolent Despot
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