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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Shunt\s+feeding\s+caps\.\s*$/: 4 ]

Total 4 documents matching your query.

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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