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Silvertone 8103a and Coronado 990b
D R FORD
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City: canton il
#1

07-10-2012, 06:46 PM
                i need to know what speaker goes in the Silvertone 8103a and all info ic an get on the Coronado 990b David
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Arran
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#2

07-10-2012, 07:15 PM
As far as I know the Coronado sets were sold by the Gamble-Skogmo department store chain. I don't know who actually manufactured them, probably Wells Gardner, Belmont, Continental Radio & Television, and other private lable radio makers. The schematics are always listed under Gamble-Skogmo if you need to find one.
Is the speaker missing from the Silvertone? Is that why you need one?
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Arran
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D R FORD
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Posts: 24
Threads: 11
Joined: Feb 2012
City: canton il
#3

07-10-2012, 08:53 PM
yes i need to find what one goes in it
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codefox1
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#4

07-10-2012, 10:33 PM
Silvertone here it's a 10 inch PM type Primary impedence (not resistance) should be 5,000.
The loctal output tube 7C5 is similar to the octal 6V6.
More tube information here:
http://www.nj7p.org/


There are methods to determine what the secondary impedence (not resistance) for you to google, but most likely an efficient 8 ohm speaker would be fine. Do nopt operate the set without a speaker.
More info on the Silvertone here:
http://www.nostalgiaair.org/PagesByModel...017828.pdf

The Coronado info is here
http://www.nostalgiaair.org/PagesByModel...007213.pdf

All this stuff is free
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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)