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Joined: Jul 2014
City: Sneedville, TN
Mike, I didn't have to replace the voice coil, thank God. I am just replacing the cone, and transformer, and the leads from the transformer to the voice coil. If you have to replace the cone on one of the Philcos which use a spider attached to the voice coil, it is really not that bad a job. The spider makes the voice coil self centering. Just pre fit everything carefully before gluing it up. Then use a slower setting glue to glue the cone to the voice coil assembly. I have always used Goop. It dries into a vinyl rubber, and is slow drying, which allows one to make the little adjustments to the cone one may have to once the voice coil is inserted, and the whole thing is then inserted back into the basket, and the center screw of the spider installed. I let it dry over night, then take it back out before applying Goop around the edges of the basket to finally secure the cone, and then re-installing the center screw, and doing final adjustments to the edges of the cone. The most important thing is to get the right cone for the job, or adjusting what one ends up with, so that it works. You will remember my work on the RCA T8-18. Now THAT was a hair raising job that required some ingenuity on my part. This speaker is easy compared to that, except I wish I could get a transformer that matched impedance better.
(This post was last modified: 02-20-2020, 05:13 PM by mikethedruid.)
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