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</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dobrý den,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>a co něco takového?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>http://www.backer-elektro.cz/catalog/telesa-pro-ohrev-vzduchu/typ-4369-typ-6553<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>S pozdravem P. R.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Hw-list [mailto:hw-list-bounces@list.hw.cz] <b>On Behalf Of </b>cipisek.cipr@seznam.cz<br><b>Sent:</b> Thursday, August 13, 2015 1:47 PM<br><b>To:</b> hw-list@list.hw.cz<br><b>Subject:</b> 200W odpor , asi vyroba?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>Potrebuji cca 200W odpor o velikosti 20Ohm, proud 3A. Vyhodou je mala parazitní L a C.<br>Z profi nabidky jsem si z cenovych a jinych duvodu nevybral, na vhodnou bazarovou nabidku nenarazil a tak odpor nejspise vyrobim.<br><br>Myslenka je, Cu trubka + Cu zatky do ni zasunout keramickou desticku (kus dlazdicky) s zarezy na to namotat odpor z manganinu 0,1mm (55,4 ohm / metr) cele nasledne zalit olejem . Pro odvod tepla pak celou trubku ponorit do vody. (Pouzivat se to bude jako umela zatez pro kalibraci)<br>Ve své podstate mam vse po suplicich, az na vhodne terminaly pro vyvedeni vne trubky. Poradite vhodne, pres ktere nebude protekat olej? V podstate by stačilo vyvest draty s vhodnou izolaci,ale nejsem si jist zda by i přes třeba 10mm vylitou epoxidovou zatku neprotekal casem olej.<br><br>Odhadnete jaka bude parazitni L takove veci, respektive pletu se hodne pokud odhaduji rádove 100-200 nH?<br><br>Ciprian<br><br><o:p></o:p></p><p class=MsoNormal>=<o:p></o:p></p></div></body></html>