- 1. Topband: Shunt feeding caps. (score: 1)
- Author: w3pt@itech.net (Bob Marzari)
- Date: Fri, 6 Dec 2002 16:56:54 -0500
- Hi, I am looking for advice on replacing the 250pF bread-slicer used in my 160M Gamma match with a fixed value cap and therefore reducing the size of the NEMA box at the base of the tower. I am at ab
- /archives//html/Topband/2002-12/msg00100.html (6,822 bytes)
- 2. Topband: Shunt feeding caps. (score: 1)
- Author: G3XRJ@btinternet.com (John - G3XRJ -)
- Date: Sat, 7 Dec 2002 19:33:45 -0000
- Bob, I found that ceramic capacitors got warm in my Gamma. Measure the value of your variable cap. and replace it with a length of coax cut to that value. For the shunt C you'll need to trim the scre
- /archives//html/Topband/2002-12/msg00102.html (7,732 bytes)
- 3. Topband: Shunt feeding caps. (score: 1)
- Author: price.smith@worldnet.att.net (Harold Smith)
- Date: Sat, 7 Dec 2002 17:34:36 -0600
- Bob: I will agree with John, G3XRU. I don't think ceramic capacitors are the way to go. I even had a problem with air varible capacitors at 1500 watts. The plates would warp and short out. I went to
- /archives//html/Topband/2002-12/msg00105.html (7,847 bytes)
- 4. Topband: Shunt feeding caps. (score: 1)
- Author: zl3ix@inet.net.nz (Greg - ZL3IX)
- Date: Mon, 9 Dec 2002 19:42:26 +1300
- . and Hi John, I would suggest that the only reason you didn't notice the coax getting warm, is that the dissipation is more distributed. I believe the loss would have been similar to the ceramics. A
- /archives//html/Topband/2002-12/msg00122.html (6,905 bytes)
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