[BC] Silver soldering BRASS

[Mike McCarthy]

If there is a way to oxy/acet solder silvaloy to brass, someone please show 
me.  Every time I've tried it, it won't flow and the brass distorts and/or 
melts. It's like the brass is dissimilar enough to the flux that it won't 
flow. But Kintornics seems to make it work using 45% silver....which 
requires even more heat.  So I don't get it....and haven't had the time to 
play with it as I'm usually under the gun to get something done.  So I 
improvise using threaded plumbing fittings which I can solder.

MM

At 02:26 PM 10/16/2007 +0000, RichardBJohnson at comcast.net wrote

>In the olden days, when broadcasters kept their antennas and
>ground-systems in shape, I remember seeing several pages
>of information about copper straps, ground-screens, and
>radials. I think it's in the NAB Engineering Handbook if
>you can find an old copy. Anyway, the 'tee' connection was
>handled with 4 holes punched into the straps with 1/4-20
>brass bolts and nuts. The result was then flowed over
>with silver solder. The "ell" connection was done with
>a fold (the corners of the rectangle that was supposed to
>connect the edges of the ground-screen, both at the
>tower base and at the end of the screen. The edges of
>the ground-screen were compressed between two
>straps, held at about 18 inch intervals with 1/4-20 brass
>bolts, then silver-soldered as well. The radials were
>installed first and ran under the ground screen to the
>strap that ran around the tower base.
>
>--
>Cheers,
>Richard B. Johnson
>Read about my book
>http://www.LymanSchool.org