Post by thread:Looking for good info on doing blazing work?

Usually mechanical connections are used in antenna ground systems. Here is a summary of my experience on brazing: The joint should be clean and shiny. Coated brazing rods are nice but good flux is essential. A four ounce container of flux from a welding supply store costs about $6 around here. It will last very long time. It is corrosive so make sure you clean up well afterwards. You must have adequate heat, usually a propane torch is the minimum with acetylene preferred. Some use the a product called Mapp gas". Brazing is essentially a high temperature soldering process. The joint will need to get to a dull red to flow properly. The flux melts an shields the joint from oxidation. Silver solder is a little easies to work with, but good supplies are very expensive. There is a world of difference in dealing with silver bearing solder and the real stuff. The last time I priced top quality Harris Silver Solder it was about $80 for a four ounce roll! The higher your skill level, the better you can deal with minimal equipment and supplies, just like life in the electronics world. John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 spam_OUTjohnferrellTakeThisOuTearthlink.net Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" {Original Message removed}

At 11:36 AM 7/21/2003 -0400, you wrote: >The last time I priced top quality Harris Silver Solder it was about $80 for >a four ounce roll! You should see the security precautions when you go to pick the stuff up at the actual precious metal alloy supplier. (it's on the shelf in some wholesale places, so no big deal). You go into a little well lit and camera'd windowless room, probably with remote-controlled electric locks on the door. The clerk on the other side peers at you through THICK bulletproof glass, your paperwork or payment goes through a hinged box that never allows any opening between the inside and outside, and the material is fed back through the same box. Similar to jewelry manufacturers. Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" .....speffKILLspam@spam@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads