Re: Topband: Soldering in the wild!

2012-08-06 Thread Pete Smith N4ZR
I believe the whole idea of the split bolt is that, properly tightened, it exerts enough pressure to crush through any existing corrosion and make a joint that is too tight for corrosion to intervene. 73, Pete N4ZR The World Contest Station Database, at www.conteststations.com The Reverse

Re: Topband: 160 Meter Tuning Question

2012-08-06 Thread Tom W8JI
How much series C will it take to resonate a set of three guy wires 120 degrees apart that are 145 feet long each. They are fed at the 60 foot level of a Rohn 25 tower, and slope down to 10 feet at the ends. They are guy wires that cannot be changed. I want them to resonate on 1.830 khz.

Topband: Lazy question concerning toroidal inductors

2012-08-06 Thread Tod Olson
I am sure [or at least I hope] I could sort through the information available in books and on the web for the answer to this question, but maybe someone reading this reflector can give me an 'instant' answer [preferably correct]. I intend to use a powdered iron core toroid as the form for an

Re: Topband: Lazy question concerning toroidal inductors

2012-08-06 Thread Richard (Rick) Karlquist
Not enough information. How many turns? How much current through inductor? What core size? What material? Do you already have a particular core you want to design around? What Q do you need from the standpoint of antenna efficiency? Is Q only a thermal issue? As a VERY general rule, Q is

Re: Topband: Soldering in the wild!

2012-08-06 Thread Bill Wichers
Small C-taps are available that can be used as splices. Even the small ones are usually for large(ish) (by antenna standards) wire, generally 8+ gauge. There may be smaller ones available. Common manufacturers are TB, Burndy, and Panduit. The smaller C-taps can be installed with a mechanical

Topband: Soldering in the wild

2012-08-06 Thread dick-bingham
Hello All Most of my 'soldering in the wild' has used a small gas-fired torch (a BIC lighter works well) but I have often used nothing more than a strike-anywhere match. Try it - you will be pleasantly surprised ! I wrap the knife-scraped-clean-wires together and then wind a length of solder