04-07-2008, 07:05 AM
Hi there,
Schematic and alignment info can be found here:
http://www.nostalgiaair.org/resources/413/M0013413.htm
Most people (including me) will suggest that ALL paper caps be replaced. They tend to be too troublesome to leave into place if you want a reliable radio. If you want to risk the bare minimum you can replace : the power supply filter caps (26, 26A, 39 on the diagram), Audio coupling #47, audio plate bypass #49, AC bypass caps (#57).
There are numerous places to buy tubes. I personally use http://www.findatube.com most of the time when buying assortments but frankly, unless there is something to indicate needing replacement tubes I wouldn't bother.
As for the speaker, the hole in the cone isn't an issue but I know what you mean about brittle. Most any original replacement is going to be equally brittle. There are places that do reconing but not inexpensive. Console sized speakers show up pretty often on ebay fairly cheap so you might just want to watch the marketplace for a while to see if you find a better one.
Good luck,
Bill
Schematic and alignment info can be found here:
http://www.nostalgiaair.org/resources/413/M0013413.htm
Most people (including me) will suggest that ALL paper caps be replaced. They tend to be too troublesome to leave into place if you want a reliable radio. If you want to risk the bare minimum you can replace : the power supply filter caps (26, 26A, 39 on the diagram), Audio coupling #47, audio plate bypass #49, AC bypass caps (#57).
There are numerous places to buy tubes. I personally use http://www.findatube.com most of the time when buying assortments but frankly, unless there is something to indicate needing replacement tubes I wouldn't bother.
As for the speaker, the hole in the cone isn't an issue but I know what you mean about brittle. Most any original replacement is going to be equally brittle. There are places that do reconing but not inexpensive. Console sized speakers show up pretty often on ebay fairly cheap so you might just want to watch the marketplace for a while to see if you find a better one.
Good luck,
Bill
