| Shellac was used on most sets of the 1920’s and on some sets during the early 30’s. Your RCA was probably finished in lacquer. I have never used amalgamator on a radio with lacquer because I’ve never had a need to, but maybe other people have. This stuff is not a finish, and should only be used on a finish that is still there and “gone bad”. Lacquer doesn’t usually do that on a radio cabinet, or that has been my experience with it. Either there is enough of the original finish to restore by other means, or there is not. In other words, I have either salvaged some lacquer finishes by touchup work, or removed the remains and applied a new finish. On the other hand, shellac can “go bad”. It can turn so black that you can’t see through it, and this is the only kind of finish that I have had a use for amalgamator.
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