Hi Jeff I always put more into the school of hard knocks had to say than what any wall paper would say. Thanks
Randy On 2010-03-20, at 5:05 PM, Jeff DePolo wrote: Mmmm...for 3" strap, it will likely depend on the thickness. You might be able to get by with a MAPP gas torch. I can do small wire (12 AWG typically, for ground radials) to 3" copper strap just using MAPP gas no problem, but if I'm doing anything heavier, I do oxyacetylene. I like 15% sil-phos (Harris Stay-Silv 15 is what I usually get) - no fluxing, good flow. Disclaimer - I'm not a welder, plumber, HVAC tech, etc.. I don't weld/braze on a daily basis; I'm just passing along what I know and what I've learned via reading, but even moreso, from my enrollment in the school of hard knocks. --- Jeff WN3A > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Randy Elliott > Sent: Saturday, March 20, 2010 2:32 PM > To: [email protected] > Subject: Re: [Repeater-Builder] Ground Strap Installation. > Best way to run it? > > > > Thanks Jeff > I have just learned something new today. > So you would need an acetylene torch to provide enough heat > for doing this. > Randy > > > On 2010-03-20, at 2:04 PM, Jeff DePolo wrote: > > > > > > > > Hi Jeff > > Just wondering why silver? Lower impedance or higher melt > > temp or both? > > Strength and melting point. > > Note that "silver soldering" isn't soldering using soft > solder that has some > silver in it, such as tin+silver or tin+silver+copper. Those > kinds of soft > solder are often called "silver bearing solder". Silver > soldering is really > a kind of brazing. For silver soldering (brazing) copper > strap, sil-phos > brazing rods are often used (sil-phos = silver + phosphorus, > the balance of > the composition being copper). > > --- Jeff WN3A > > > > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.733 / Virus Database: 271.1.1/2748 - Release > Date: 03/20/10 03:33:00 > > >
