Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+isolation\s+question\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[AMPS\]\s+isolation\s+question\s*$/: 9 ]

Total 9 documents matching your query.

1. [AMPS] isolation question (score: 1): Author: sm3uzs@telia.com (Johan Nordin); Date: Mon, 15 Feb 1999 12:09:18 +0100; Hi there Does anyone know how much DC voltage 0.25mm (0.01 inch) teflon sheet can handle used as a dielectricum in a decoupling cap (made of brass) Any help appreciated! SM3UZS Johan -- FAQ on WWW: h; /archives//html/Amps/1999-02/msg00397.html (7,507 bytes)
2. [AMPS] isolation question (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Mon, 15 Feb 1999 11:36:33 -0000; The ITT Reference Data for Radio Engineers lists teflon as 1000 to 2000 volts per thosandth of an inch for thickesses between .005 and .012 inches. This suggests a minimum of 10kV for your thickness; /archives//html/Amps/1999-02/msg00399.html (8,059 bytes)
3. [AMPS] isolation question (score: 1): Author: wb8jkr@juno.com (Mark S Graalman); Date: Mon, 15 Feb 1999 11:32:25 EST; Probably, about 30-40 KV DC maximum. (on paper) Mark WB8JKR On Mon, 15 Feb 1999 12:09:18 +0100 "Johan Nordin" <sm3uzs@telia.com> writes: ______________________________________________________________; /archives//html/Amps/1999-02/msg00405.html (8,650 bytes)
4. [AMPS] isolation question (score: 1): Author: w4eto@rmii.com (Richard W. Ehrhorn); Date: Tue, 16 Feb 1999 12:10:15 -0700; In real life the actual rf breakdown voltage of a capacitor commonly is determined by unintended/unrecognized/unknown regions of unexpectedly high voltage GRADIENT - often many times higher volts per; /archives//html/Amps/1999-02/msg00427.html (11,220 bytes)
5. [AMPS] isolation question (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Wed, 17 Feb 1999 11:25:38 -0500; On Tue, 16 Feb 1999 12:10:15 -0700 "Richard W. Ehrhorn" <w4eto@rmii.com> writes: Nice and concise Dick, thanks for that info. I have, and sure others also, blown the Teflon sheet as used in many ham; /archives//html/Amps/1999-02/msg00448.html (11,035 bytes)
6. [AMPS] isolation question (score: 1): Author: w4eto@rmii.com (Richard W. Ehrhorn); Date: Wed, 17 Feb 1999 15:45:15 -0700; Hi Carl... It's only a gut feeling, but I'd prefer a single thicker piece of Teflon to multiple thin ones, because the latter creates more interstices (!?!) between layers - where air can lie in wait; /archives//html/Amps/1999-02/msg00457.html (12,203 bytes)
7. [AMPS] isolation question (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Thu, 18 Feb 1999 02:15:40 -0500; On Wed, 17 Feb 1999 15:45:15 -0700 "Richard W. Ehrhorn" <w4eto@rmii.com> writes: OK Dick BUT that was why I asked the question. Unless you buy the top grade Teflon sheet there will be air voids...per; /archives//html/Amps/1999-02/msg00460.html (14,617 bytes)
8. [AMPS] isolation question (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Thu, 18 Feb 1999 08:47:59 -0000; Has anyone any info on the dielectric properties of silicon grease? Things like dielectric constant, and tan delta at various frequencies? Obviously, if the tan delta is too high, it might not be a g; /archives//html/Amps/1999-02/msg00463.html (7,789 bytes)
9. [AMPS] isolation question (score: 1): Author: w4eto@rmii.com (Richard W. Ehrhorn); Date: Thu, 18 Feb 1999 21:20:27 -0700; Hi Carl... All your points are well taken - particularly the first one: I really don't know whether monolithic or multi-layered is best; it likely depends on specific parameters of the application in; /archives//html/Amps/1999-02/msg00489.html (7,881 bytes)

Current List: 1 - 9
Page: [1]