[TowerTalk] inductance of tubing vs bar or strip

[Dick Green WC1M]

I'm no expert, but I would imagine stuff like that would work. But given the
requirement for what is basically welding equipment, I think it would be
cheaper and easier to use a mechanical clamp or exothermic welding (e.g.,
Cadweld.)

73, Dick WC1M

> -----Original Message-----
> From: Charlie Gallo [mailto:Charlie at TheGallos.com]
> Sent: Tuesday, August 18, 2009 6:03 PM
> To: Dick Green WC1M
> Cc: n4zr at contesting.com; TowerTalk
> Subject: Re: [TowerTalk] inductance of tubing vs bar or strip
> 
> 
> 
> On 8/18/2009 Dick Green WC1M wrote:
> 
> > I don't know about the inductance, Pete, but my understanding is that
> > soldered connections are not a good idea -- a lightning surge can melt
the
> > joints. I think you would need to use a mechanical clamp or something
like
> > Cadweld.
> 
> > 73, Dick WC1M
> 
> I keep seeing "solder melting" - and I have what is probably a very very
> silly question - What about "Hard" solders like Sil-phos or "Hard" Silver
> solder?  You know, the stuff that takes a Mapp Gas (or Acetylene-air  or
Oxy-
> Acetylene) to melt?  I've always sort of assumed it would be OK with their
> quite high melting points (Sil-fos has a melting point of 1185 F.  Silver
> solders seem to range from around 1200 deg to 1800 degs.  Compare this to
361
> degs for 63/37 soft solder and 1984 degs for pure copper)
> 
> --
> 73 de KG2V
> 
> For the Children - RKBA!
> 
> Any sufficiently advanced technology is indistinguishable from magic.
> --A.Clarke