Silvertone 8103a and Coronado 990b - Printable Version
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+-- Forum: Various and Sundry Categories (https://philcoradio.com/phorum/forumdisplay.php?fid=37)
+--- Forum: Other Radios (Non-Philco) (https://philcoradio.com/phorum/forumdisplay.php?fid=12)
+--- Thread: Silvertone 8103a and Coronado 990b (/showthread.php?tid=4970)
Silvertone 8103a and Coronado 990b - D R FORD - 07-10-2012
RE: Silvertone 8103a and Coronado 990b - Arran - 07-10-2012
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?
Regards
Arran
RE: Silvertone 8103a and Coronado 990b - D R FORD - 07-10-2012
yes i need to find what one goes in it
RE: Silvertone 8103a and Coronado 990b - codefox1 - 07-10-2012
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/828/M0017828.pdf
The Coronado info is here
http://www.nostalgiaair.org/PagesByModel/213/M0007213.pdf
All this stuff is free