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Old 04-22-2010, 08:49 AM
Sam Cogley's Avatar
Sam Cogley Sam Cogley is offline
The Devil Inside
 
Join Date: Dec 2008
Location: SW Missouri
Posts: 299
Quote:
Originally Posted by bandersen View Post
I suppose you could repair that Utah cone like I did for my WR8. Until you find the proper cone anyway.
I was actually thinking about your cone repair as inspiration. This one is far less gone than yours was.

Quote:
Originally Posted by Reece View Post
That Utah is a fine example of an early big honkin' electrodynamic speaker and it ought to be restored.
It's actually a little tiny electrodynamic speaker - the cone is only about 8". I've found a webpage about an identical speaker that came in a wooden cabinet. The only difference there is that the oval "Utah" decal was located on the wooden cabinet and not the chassis.

Quote:
I believe the copper oxide rectifiers are pretty reliable. First order of business would be to determine if the field coil and the voice coil are OK and not shorted or open, and that the voice coil is not rubbing on the pole piece.
Good news on the rectifier. I'll check the coils with a multimeter sometime this weekend, I've already checked the voice coil for rubs and found none.

Quote:
You could send it to Hank Brazeal for a professional reconing:

(205) 403 6243, E-mail [email protected]

Or you could try to recone it yourself with one from Mat Electronics.

http://matelectronics.com/acatalog/M...ories_208.html

Don't know if the cones they have would have the same depth as the Utah's. Might take some cutting and fitting. What some have done is to use a piece of the new cone to repair the old, or cut the old cone out except for an inch or so around the voice coil and then cut and fit the new cone to glue there.
Some good options. Thanks!

Quote:
BTW I don't think the red paint inside the G.E. was original!
If it isn't, someone went to a lot of trouble. It looks like it's under riveted terminal strips.
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