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 Post subject: Mechanical alignment Collins R-648/ ARR-41
PostPosted: Jun Sun 14, 2009 9:54 pm 
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Joined: Jun Wed 13, 2007 4:53 pm
Posts: 176
I have a friend who is struggling withproblems in the mechanical alignment of the above receiver, particularly on the LF band (.19 to .55 MHz). The copy of the manual he has doesn't seem to have much about adjusting the gear train, just the usual electrical alignment. It's substantially different from my R-390A, so I can't just extrapolate from my experience. Anyone have experience with working on one of these compact versions of the R-390?
Ed W2EMN


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