11-24-2013, 08:02 AM
That's what I haqve always heard about the Philco coils - the nitric acid in the celluloid damages the coils. It's usually the primaries (outer windings) that suffer the damage, but in advanced cases the inner (secondary) windings can also get the "greenies" as well.
Sulphur in the wax makes sense also. And a combination of these plus moisture equals trouble at some point for the coils.
As Chuck said, these radios were not intended to last 3/4 of a century or more. That many have is a testament to how well products were once made. To say more would mean going political, so let's leave it at that.
Sulphur in the wax makes sense also. And a combination of these plus moisture equals trouble at some point for the coils.
As Chuck said, these radios were not intended to last 3/4 of a century or more. That many have is a testament to how well products were once made. To say more would mean going political, so let's leave it at that.
--
Ron Ramirez
Ferdinand IN
