Re: Lookinmg for hams who are plumbers- connecting flexible copper pipe. .
- Sorry I didn't get back to you sooner, I have a lot of contracted preventative maintenance work and I like to get as much of it out of the way plus we had a couple of days of record temps in the low 90's
The problem with mixing silver rod and normal solder is you have to hear the rod to a much higher temperature so if the other joint is too close it's literally spit the solder right out of the joint. You can use a heat trap paste but that's not very cost effective for a one time deal. Of course you can use the old standby of wrapping a wet rag around the regular solder joint if there is room. Be aware that the rag can dry out amazingly fast and catch fire. I usually fill and old dish soap battle with water and you can squirt it to keep the rag wet. I have to do that when I'm working around shut off valves, pressure switches and expansion valves so you don't ruin the seats and seals.
--- In firstname.lastname@example.org, "vaclav_sal" <vaclav_sal@...> wrote:
> Thanks for all the advice.
> I guess I need to hookup with local AC shop, should not be a big problem in Houston.I'll try the swaggering method, but I am affraid to damage the pipe in wise.
> I am not trying to split hair - but can I mix "regular" solder with silver?
> Anyway, I think putting the regular 3/8 cap on the end and soldering it on with regular solder and than solder the capped end into the tee with silver. If I fill the gap all the eay to the pipe surface the RF should like it because of the skin effect.
> Any comments on that?
> By the way I think I found good source of quality insulation (low loss) material - plastic kitchen cutting board. Now if I can make sure it is the real high density poly I'll be happier.
> Electric motor from child riding toy - with reduction transmission looks very promising. And it fits snuggly on top of the camo surplus pole!
> The only "problem" with these poles is the odd diameter _ 1 13/16!
> It must have a same history as copper pipe sizes HI HI.
> Thanks for round files and sanding paper!
> 73 Vaclav AA7EJ