Halbschale
English translation: pot core / cup core
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| 21:22 Feb 19, 2007 |
| German to English translations [PRO] Tech/Engineering - Computers: Hardware / motherboard | |||||||
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|  Selected response from: Ken Cox Local time: 09:46 | ||||||
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| Summary of answers provided | ||||
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| 4 | ferrite cores |
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| 4 | pot core / cup core |
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| Discussion entries: 3 | |
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Answers
43 mins confidence: 
ferrite cores Explanation: Those are ferrite cores hat sometimes look like an arc (are cut in half) and have a coil around them. The vibration of the coil causes the sound. Also check for toroidal ferrite cores. Example sentence(s):
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44 mins confidence:
pot core / cup core Explanation: common name for this sort of ferrite core (normally used in pairs enclosing a coil) refs: Construction hints for a ferrite pot coil using RM6 core, M33 material for b.c. band (MW). Important is the use of teflon cord in the middle of the coil former space (for details see photo 2, photo 3, photo 4, photo 5). This cord should guarantee some coil-free space near the gap of the two ferrite cup cores. As a result, the Q of coil will be even better. The spacing should not be occupied by coil wiring (according to manufacturer's specifications for medium wave use some space near the gap of the core is necessary). At first you wind the turns only left of the teflon cone and then on the right side. Then continue to wind normally. Construction details here.Construction plan for a high performance triple tuned dual circuit receiver using these coils here. Aufbauhinweise fuer eine Ferritkern-Topfspule mit RM6 Kern, Material M33 fuer MW-Bereich. Wichtig ist die Verwendung von Teflonschnur in der Mitte der Spulenkammer (Details siehe Photo 2, Photo 3, Photo 4, Photo 5). Diese Schnur soll in der Naehe des Luftspaltes der beiden Ferrit-Halbschalen fuer einen freien Raum sorgen. Dadurch wird die Spulenguete weiter verbessert (Laut Herstellerangaben soll fuer Mittelwelle der Raum nahe des Luftspaltes keine Spulenwicklung aufnehmen.). Wickeln Sie zuerst links und rechts von dem Teflon-Kegel, dann einfach in Lagen weiter. Aufbau-Details hier. Bauvorschlag fuer einen Hochleistungs-Zweikreis-Empfaenger mit diesen Spulen hier. http://www.oldradioworld.de/gollum/hcoils.htm [PDF] Microsoft PowerPoint - rme_KONTENDA_WS.ppt Übertragbare Leistung für Ferrithalbschalen [p.11, with drawing] www.ifak-md.de/fileadmin/home/ user/aho/PDF/PAPER_KONTENDA_2003.pdf pot core images: POT Core 250 x 400 pixels - 9k - gif www.allstarmagnetics.com Ferrit pot core coil, P18 11 5 . www.oldradioworld.de Toroidal and pot core transformers ... 205 x 194 pixels - 19k - gif www.belfuse.com |
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