- 1. Re: Topband: [TowerTalk] What's heating up ? (score: 1)
- Author: Guy Olinger <k2av@contesting.com>
- Date: Mon, 13 Mar 2017 12:41:18 -0400
- Once you know the problem is the cap, then you need to get really serious about the cap. Caps in RF tuning networks are stressed applications. Decide if you ever want to use it for anything except sh
- /archives//html/Topband/2017-03/msg00025.html (14,685 bytes)
- 2. Re: Topband: [TowerTalk] What's heating up ? (score: 1)
- Author: "John Harden, D.M.D." <jhdmd@bellsouth.net>
- Date: Mon, 13 Mar 2017 13:13:26 -0400
- For a while I was cooking vacuum variables in my 160 meter Omega match network as well as SO-239's es "N" female connectors... I couldn't figure out what the problem was?.............................
- /archives//html/Topband/2017-03/msg00026.html (16,864 bytes)
- 3. Re: Topband: [TowerTalk] What's heating up ? (score: 1)
- Author: "Lennart m" <lennart.michaelsson@telia.com>
- Date: Mon, 13 Mar 2017 18:29:01 +0100
- Hi all, There are some good, fixed EU caps that were used in coast to ship radio transmitters. One of the outstanding onses were manufactured by "Rosenthal", also famous for the production of extreme
- /archives//html/Topband/2017-03/msg00027.html (15,956 bytes)
- 4. Re: Topband: [TowerTalk] What's heating up ? (score: 1)
- Author: "JC" <n4is@comcast.net>
- Date: Mon, 13 Mar 2017 14:19:33 -0400
- The problem with doorknobs capacitor is the dielectric. Class one or NPO does not change capacitance with temperature and has low loss on 1.8 MHz, however the max capacitance you can find is 170pF. M
- /archives//html/Topband/2017-03/msg00029.html (17,392 bytes)
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