Path: ...!3.eu.feeder.erje.net!feeder.erje.net!news.in-chemnitz.de!news2.arglkargh.de!news.mixmin.net!weretis.net!feeder8.news.weretis.net!reader5.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Jan Panteltje Newsgroups: sci.electronics.design Subject: Re: Instead scopes Date: Mon, 02 Sep 2024 02:53:25 GMT Message-ID: References: <8f2tcj1832r0m6872hvp1fcrv8hsf3chsh@4ax.com> <8dv0djhj73b0ejudpkahnojgjk30i9rrbv@4ax.com> <0ns8djtqe7ct4k21h8ubnj944fonq9i0u0@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; ISO-8859-15 Content-Transfer-Encoding: 8bit Injection-Date: Mon, 2 Sep 2024 02:53:26 -0000 (UTC) Injection-Info: solani.org; logging-data="2153902"; mail-complaints-to="abuse@news.solani.org" User-Agent: NewsFleX-1.5.7.5 (Linux-5.15.32-v7l+) Cancel-Lock: sha1:1vsk/K7gssYJPLLhF4pSgJsq1uY= X-User-ID: eJwFwYEBACAEBMCVSB7j9Mn+I3TnBsWNDcf28TGZuCl+ztMOnn7WtZzBIbxTcgG2nkSKFGf2HWRIUFGq/GGeFWQ= X-Newsreader-location: NewsFleX-1.5.7.5 (c) 'LIGHTSPEED' off line news reader for the Linux platform NewsFleX homepage: http://www.panteltje.nl/panteltje/newsflex/ and ftp download ftp://sunsite.unc.edu/pub/linux/system/news/readers/ Bytes: 2586 Lines: 21 On a sunny day (Mon, 02 Sep 2024 02:48:45 GMT) it happened Jan Panteltje wrote in : >On a sunny day (Sun, 01 Sep 2024 13:32:59 -0700) it happened john larkin > wrote in : > >>My inductor is cheap and simple and works. >> >>If I get a gigantic order, I'll have a coil winding company make them >>and retire the Sharpie. > >Some time ago I mentioned ceramic coil formers with grooves to you. >There were some in the mil transceivers. >It fixes the turns in position and diameter > https://www.surplussales.com/Inductors/Ind-SlugTu/Ind-SlugTu-4.html > ebay has some too I think > >You could have some made if you sell thousands, any pottery;-) > >I had some nice big ones with silvered wire in my 250 W linear in school days. PS you do know about skin effect do you?