[TowerTalk] Lightning protection questions.

[Tower (K8RI)]

>The more silver added to the mix, the more fluid the molten braze is.
>45% silver braze will flow into tiny cracks. In fact, you can't bridge
>gaps very well with the high silver alloys; the 5% stuff is more

With practice you can fill holes with the stuff.  It's just more difficult
if you haven't spent time working with it.

Smaller tip and OxyAcetylene.

>forgiving of bad fitup of the joint. Note also that the melting point
>comes down with increasing silver content, but boy howdy does the price
>go up!

>All of these brazing materials are fluxed with the same white stuff. I
>don't recall what it is exactly, but if it powdered, you add water to
>make a paste. If it's a paste already, you're good to go.

>I believe that any of the common brazing materials are as good as the
>base copper as far as current handling (lightning) is concerned, but I

Evn the high silver content is as good as or better due to the lower
resistance.

Roger (K8RI)

>suspect that they are not "approved" joining methods for grounding stuff
>because a certain amount of skill is required to do it properly.

73,

geo - n4ua