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1. [AMPS] HV filter capacitors (score: 1): Author: LOMAX1@prodigy.net (Frank Ayers, W2FCA); Date: Tue, 3 Feb 1998 18:59:22 -0000; I have a question on HV power supply caps. I'm building a power supply for about 2500v at an amp or so to power some VHF amplifiers. I have an oil filled cap that's rated at 35 uf at 4500 V. I was th; /archives//html/Amps/1998-02/msg00006.html (7,889 bytes)
2. [AMPS] HV filter capacitors (score: 1): Author: philk5pc@connect.net (Phil Clements); Date: Tue, 3 Feb 1998 19:43:36 -0600; Only hams use strings of electrolytics, Frank. All commercial and the best Amateur amps all use oils. Electolytics are a cheap and easy way to cram lots of mfd into a table-top amp that you can carry; /archives//html/Amps/1998-02/msg00007.html (8,605 bytes)
3. [AMPS] HV filter capacitors (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 3 Feb 98 18:37:12 -0800; Even if the capacitor is designed for flash discharge service instead of dc filter service, with a 4500 peak-v rating, it should work well at 2500v in dc filter service. . R. L. Measures, 805-386-37; /archives//html/Amps/1998-02/msg00008.html (8,770 bytes)
4. [AMPS] HV filter capacitors (score: 1): Author: dail@CEBAF.GOV (Walter Dail); Date: Wed, 04 Feb 1998 08:07:50 -0500; Use the oil filled cap. Oil filled caps unlike electrolytics do not dry out over time and break down. Usually electrolytics are used because they are usually cheaper than a comparable oil filled unit; /archives//html/Amps/1998-02/msg00009.html (9,063 bytes)
5. [AMPS] HV filter capacitors (score: 1): Author: al511@freenet.uchsc.EDU (Robert Neece); Date: Wed, 4 Feb 1998 11:36:23 -0700; Is there a handy rule of thumb as to how much to derate an energy-storage capacitor when one wishes to use it in dc filter service? I understand that the energy-storage types (flashdischarge) are des; /archives//html/Amps/1998-02/msg00011.html (7,987 bytes)
6. [AMPS] HV filter capacitors (score: 1): Author: wrt@eskimo.com (Bill Turner); Date: Thu, 05 Feb 1998 00:29:45 GMT; _______________________________________________________________ I have also heard this said, but have never heard an explanation. If they simply have lower Equivalent Series Resistance (ESR), what wo; /archives//html/Amps/1998-02/msg00012.html (7,821 bytes)
7. [AMPS] HV filter capacitors (score: 1): Author: measures@vc.net (Rich Measures); Date: Wed, 4 Feb 98 17:04:53 -0800; 60% The ESR of flash-caps appears to be higher due to use of thinner plate material - which allows the designer to pack in more C - and more Joules - per unit of volume. They seem to work acceptably; /archives//html/Amps/1998-02/msg00013.html (8,567 bytes)

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