philco 630 question - Printable Version

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philco 630 question - radio dog - 12-14-2022

Working on restoring a philco 630 first series restuffed capicators number 67   the 8-8 -10---- there is a wire from resister 70  connecting to the can on capicator 67 .i dont know what kind of wire it is but i cant get it take solder to reinstall it. doesnt seem to be a resistant wire.anybody ran into this-thanks

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RE: philco 630 question - Radioroslyn - 12-14-2022

It's nichrome or resistance wire. It doesn't take to soldering very well. Most of the time it's crimped or riveted to a solderable terminal. If it's part of candohm I would just replace both sections w/two separate resistors.

https://philcoradio.com/library/download/service%20info/service%20bulletins/Philco%20Service%20Bulletin%20219B.pdf

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RE: philco 630 question - morzh - 12-14-2022

Nichrome wire can be soldered using strong acidic flux. An aspirin tablet works just fine, and this has to be uncoated (plain aspirin) one.
If you have to solder it. Otherwise, as Terry suggested, you could crimp it.

PS. Could you possibly write in a bit more structured manner, using capitals and punctuation. It makes reading a little easier. As a courtesy to fellow forum members.

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RE: philco 630 question - radio dog - 12-18-2022

Thanks Guys.Didnt know about the aspirin as flux

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RE: philco 630 question - morzh - 12-18-2022

Well, don't inhale it when fluxing, it is irritating

Get the iron hot, scrape the wire a bit (rougher surfaces are always a bit easier to tin), get a decent plob of solder at the tip of the iron, and start fluxing the wire end right agains the aspirin tablet, as it melts. Keep rubbing the tip back and forth as you flux it.

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