They do have a web site, www.erico.com , and, interestingly, they
manufacture not only the CADWeld system, but complete grounding systems and
a thunderstorm warning system, too. They also sell coax and power surge
protection equipment, but the coax surge protectors only go up to 200 watts
capacity.
Doc, N9AM
-----Original Message-----
From: Bob Wanderer <aa0cy@nwrain.com>
To: 'Richard Spindler' <spindoc@digital.net>; TowerTalk Reflector
<towertalk@contesting.com>
To: <towertalk@contesting.com>
Date: Sunday, October 24, 1999 20:52
Subject: RE: [TowerTalk] Exothermic Welding?
>
>Contact Erico in Ohio (sorry don't have their city or tel #).
>They sell the CADweld(TM) brand of exothermic welding
>including "one shots."
>
>For ham radio usage, however, unless you have access via
>the commericial world or a ham club which wants to make a
>group use purchase, you can do well enough with mechanical
>manipulations. If you must use dissimilar metals, make sure
>you put a "middle man" between them (e.g. stainless steel).
>
>73,
>Bob AA0CY
>
>PS The way it works is that the "gunpowder" melts the dissimilar
>metals together so that there is no discrete "interface" for electrolysis
>to occur.
>
>----------
>From: Richard Spindler[SMTP:spindoc@digital.net]
>Sent: Sunday, October 24, 1999 5:50 AM
>To: TowerTalk Reflector
>Subject: [TowerTalk] Exothermic Welding?
>
>
>I am getting ready to install some ground rods for the tower.
>
>The PolyPhaser literature and, I believe, the NFPA literature talks
>about welding the ground wire to the rods with "exothermic welding."
>
>It sounds a little like witchcraft starting with some aluminum oxide
>powder and copper powder and an ignition powder with a form to put it
>all in.
>
>Anybody acquainted with exothermic welding?
>
>Doc, N9AM
>
>
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