Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Gamma\s+match\s+success\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Gamma\s+match\s+success\s*$/: 7 ]

Total 7 documents matching your query.

1. Topband: Gamma match success (score: 1): Author: Tree <tree@kkn.net>; Date: Mon, 15 Oct 2018 10:43:27 -0700; Maybe someone can put together a web page with examples of successful gamma match configurations for towers. Here is what I found this weekend with my new tower. Tower height - 97 feet. Top loading -; /archives//html/Topband/2018-10/msg00067.html (8,429 bytes)
2. Re: Topband: Gamma match success (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Mon, 15 Oct 2018 13:18:20 -0700; I replaced the variable cap with a home made cap using RG8. I had one Sometimes, capacitors made from coax are lossy. I modeled your coaxial capacitor using Simsmith (very easy to do) and the Q turn; /archives//html/Topband/2018-10/msg00068.html (7,066 bytes)
3. Re: Topband: Gamma match success (score: 1): Author: "Edward Sawyer" <sawyered@earthlink.net>; Date: Tue, 16 Oct 2018 12:27:46 -0400; I usually use the complex impedance as my guide here. What is the resistive component vs the model? If the SWR is flat it is often because the resistive ( R ) portion is too high and dominating the f; /archives//html/Topband/2018-10/msg00070.html (7,620 bytes)
4. Re: Topband: Gamma match success (score: 1): Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>; Date: Tue, 16 Oct 2018 14:46:08 -0300; Unless you use LMR 600 or Andrew heliax a cap made from standard RG-8 or 213 has its limitations. eBay has a ton of high current fixed caps very close to the value you need. Some are from Ukraine (Ru; /archives//html/Topband/2018-10/msg00071.html (8,855 bytes)
5. Re: Topband: Gamma match success (score: 1): Author: Tim Shoppa <tshoppa@gmail.com>; Date: Tue, 16 Oct 2018 13:55:24 -0400; I would caution against using Russian military surplus doorknobs, or Chinese doorknobs, in a tuned circuit without understanding their dielectrics. I tried a couple and was very disappointed. With HE; /archives//html/Topband/2018-10/msg00072.html (9,541 bytes)
6. Re: Topband: Gamma match success (score: 1): Author: Tree <tree@kkn.net>; Date: Wed, 17 Oct 2018 07:43:05 -0700; I had a cap like that in my Viewstar PT2500 that I bought new in 1985. After a second or two of transmitting - the power output dropped and I had to retune the loading control. Fixed it with a stack; /archives//html/Topband/2018-10/msg00073.html (11,521 bytes)
7. Re: Topband: Gamma match success (score: 1): Author: David Olean <k1whs@metrocast.net>; Date: Wed, 17 Oct 2018 14:39:18 +0000; I would echo Tim's remarks. I bought a bunch of Russian caps on EPAY for a 160 meter amplifier and they overheated and changed value. One blew up. They were horrible as a plate coupling cap. The sel; /archives//html/Topband/2018-10/msg00074.html (10,652 bytes)

Current List: 1 - 7
Page: [1]