06-23-2017, 12:56 PM
You have an escutcheon from a Model 4 SW converter, or the lower of the two escutcheons for the 470 or 490 - the one for the SW converter section. This is the only one that says "MADE IN U.S.A." instead of "SUPER HETERODYNE 7" (70 or 35), or "SUPER HETERODYNE 9" (90).
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Ron Ramirez
Ferdinand IN