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1. [Amps] nylons (score: 1): Author: John Irwin <crazytvjohn@yahoo.com>; Date: Mon, 14 Mar 2005 15:54:52 -0800 (PST); dudes a large ace hardware store opened here last week , One block away. I have noticed a lot of nylon items that look a lot like the ceramic standoff insulators, they come with a hole in the center,; /archives//html/Amps/2005-03/msg00326.html (6,651 bytes)
2. Re: [Amps] nylons (score: 1): Author: "RICHARD GEORGE" <k6kwq@msn.com>; Date: Mon, 14 Mar 2005 16:06:23 -0800; Put some in your microwave oven and see what happens. K6KWQ Dick "12 Volt radios are for wimps, real radios can kill you" Still can't make it go QRO with "More Power" -- Original Message -- From: Joh; /archives//html/Amps/2005-03/msg00327.html (8,400 bytes)
3. Re: [Amps] nylons (score: 1): Author: John Irwin <crazytvjohn@yahoo.com>; Date: Mon, 14 Mar 2005 16:24:00 -0800 (PST); I put a 1/2 long sample 3/8" dia in with 1 tablespoon water separated ,for 2 minutes, no noticeable heating. Then by itself for 1 minute ,slightly just noticeable warm to the taste buds, john kb9tc R; /archives//html/Amps/2005-03/msg00328.html (8,273 bytes)
4. Re: [Amps] nylons (score: 1): Author: R.Measures <r@somis.org>; Date: Mon, 14 Mar 2005 16:52:52 -0800; Nylon has one of the highest D-factors of any plastic. Richard L. Measures, AG6K, 805.386.3734. www.somis.org _______________________________________________ Amps mailing list Amps@contesting.com htt; /archives//html/Amps/2005-03/msg00329.html (8,935 bytes)
5. Re: [Amps] nylons (score: 1): Author: John Irwin <crazytvjohn@yahoo.com>; Date: Mon, 14 Mar 2005 17:05:23 -0800 (PST); what is a d-factor? john kb9tc Richard L. Measures, AG6K, 805.386.3734. www.somis.org -- Do you Yahoo!? Yahoo! Small Business - Try our new resources site! ___________________________________________; /archives//html/Amps/2005-03/msg00330.html (9,198 bytes)
6. Re: [Amps] nylons (score: 1): Author: "Michael Jensen" <mrj@danamps.com>; Date: Tue, 15 Mar 2005 09:08:24 +0100; Hi All We use nylon 66, both as standoff, RF choke, supports, etc. OZ2ELA Michael DanAmps --Oprindelig meddelelse-- Fra: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]Pa vegne af Jo; /archives//html/Amps/2005-03/msg00333.html (8,066 bytes)
7. Re: [Amps] nylons (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Tue, 15 Mar 2005 09:04:44 +0000; I see this advice given out a lot, but unless I am mistaken it is flawed. Microwave ovens work by emitting energy at a frequency (I believe around 2.4GHz) where there is a water absorption peak (due; /archives//html/Amps/2005-03/msg00334.html (12,823 bytes)
8. Re: [Amps] nylons (score: 1): Author: G3rzp@aol.com; Date: Tue, 15 Mar 2005 04:21:42 EST; Nylon does happen to pretty high water absorption, so it may well show up badly in a microwave oven, depending on where it's been stored. 73 Peter G3RZP ______________________________________________; /archives//html/Amps/2005-03/msg00335.html (7,382 bytes)
9. Re: [Amps] nylons (score: 1): Author: "Peter Frenning [OZ1PIF]" <oz1pif@privat.dk>; Date: Tue, 15 Mar 2005 10:24:24 +0100; Point well taken David - Obvious solution: Grab a pice of the material under investigation, place it in plate compartment of a working amplifier at the frequency of interest, and run it at full song; /archives//html/Amps/2005-03/msg00336.html (15,543 bytes)
10. Re: [Amps] nylons (score: 1): Author: "Marc Wullaert" <marc.wullaert3@pandora.be>; Date: Tue, 15 Mar 2005 10:32:37 +0100; Are you already selling the amps ???? on4ma 6-32 variable _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2005-03/msg00337.html (10,036 bytes)
11. Re: [Amps] nylons (score: 1): Author: R.Measures <r@somis.org>; Date: Tue, 15 Mar 2005 02:45:40 -0800; Water has two oxygen atoms? I have melted nylon with 7MHz RF, but I never tried it at 2.4GHz. However, D-factor typically increases as freq. increases. Richard L. Measures, AG6K, 805.386.3734. www.so; /archives//html/Amps/2005-03/msg00338.html (14,467 bytes)
12. Re: [Amps] nylons (score: 1): Author: "Phil Clements" <philc@texascellnet.com>; Date: Tue, 15 Mar 2005 08:54:28 -0600; I had always wondered about testing HF components in a microwave environment. What great information, Dr. David! Many thanks for your trouble to help us be more informed. (((73))) Phil, K5PC _______; /archives//html/Amps/2005-03/msg00341.html (8,019 bytes)
13. Re: [Amps] nylons (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Tue, 15 Mar 2005 19:52:09 +0000; Sorry, two hydrogen ones. BTW, here's a joke someone told me recently, which that comment reminded me of. There are two hydrogens atoms in a water molecule. One hydrogen atom says to the other "I hav; /archives//html/Amps/2005-03/msg00344.html (17,088 bytes)
14. Re: [Amps] nylons (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Tue, 15 Mar 2005 20:06:37 +0000; One other thing I forgot to add is that I have here some Ross HyperSPARC CPUs, which were from a Sun workstation. (Sun did not make this CPU, but a 3rd party did). I know this particular machine had; /archives//html/Amps/2005-03/msg00345.html (9,216 bytes)
15. Re: [Amps] nylons (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Tue, 15 Mar 2005 22:31:27 +0100; Nylon should probably be avoided entirely in strong RF fields. The dielectric material property list in ITT Reference Data for Radio Engineers lists the dissipation factor of nylon as about 0.022 at; /archives//html/Amps/2005-03/msg00346.html (11,441 bytes)
16. Re: [Amps] nylons (score: 1): Author: "Radioal" <al.dolgosh@hamradio.org>; Date: Tue, 15 Mar 2005 19:25:30 -0500; Polypropylene would be an excellent choice. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2005-03/msg00351.html (12,718 bytes)
17. Re: [Amps] nylons (score: 1): Author: "donii@sympatico.ca" <donii@sympatico.ca>; Date: Tue, 15 Mar 2005 19:26:51 -0500; Karl-Arne wrote << Much of the same also goes for acrylic plastics (Plexiglas and Lucite).>> What are some easily available plastics that have good HF resistance? Peter VE2FAR _______________________; /archives//html/Amps/2005-03/msg00352.html (7,584 bytes)
18. Re: [Amps] nylons (score: 1): Author: Bob Nielsen <nielsen@oz.net>; Date: Tue, 15 Mar 2005 16:59:27 -0800; <snip> I dug around my bookshelf and found a bit of data in the ITT Reference Data for Radio Engineers (4th Edition, 1956, aka "the green bible"): Nylon 610 (polyhexamethylene-adipamide) Freq. Dielec; /archives//html/Amps/2005-03/msg00353.html (9,657 bytes)
19. Re: [Amps] nylons (score: 1): Author: "k0dan" <k0dan@comcast.net>; Date: Tue, 15 Mar 2005 20:09:47 -0600; Suppose a ham was building a balanced matching network, consisting of variable inductors and vacuum caps. It would be designed for full legal limit on any mode (AM, SSB, CW), from 160M-10M. To keep i; /archives//html/Amps/2005-03/msg00354.html (13,462 bytes)
20. Re: [Amps] nylons (score: 1): Author: John Irwin <crazytvjohn@yahoo.com>; Date: Tue, 15 Mar 2005 19:31:46 -0800 (PST); I made the original inquiry about the nylon I found at the ace hardware store . These little cylinders are the same size,shape as ceramic standoff insulators commonly used in amplifiers. I was lookin; /archives//html/Amps/2005-03/msg00356.html (8,203 bytes)

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