Post by lucius1958 on Nov 11, 2012 1:12:26 GMT -5
As you know, the 'transfer' discs, especially the late ones, are hideously susceptible to moisture. Even if they escape being ruined by splits, they may still curl up at the edges, making playback difficult.
My question: could the technique commonly used for flattening warped shellac discs (placing them under plate glass in direct sunlight) work in this case? I have experimented briefly with a hot knife (on an unplayable disc, of course), and have had slightly encouraging results.
Is the temperature required to soften celluloid and Condensite varnish much higher than that of shellac?
Bill
My question: could the technique commonly used for flattening warped shellac discs (placing them under plate glass in direct sunlight) work in this case? I have experimented briefly with a hot knife (on an unplayable disc, of course), and have had slightly encouraging results.
Is the temperature required to soften celluloid and Condensite varnish much higher than that of shellac?
Bill