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- Path: sparky!uunet!pipex!unipalm!uknet!mcsun!sun4nl!htsa!tsjoit
- From: tsjoit@htsa.aha.nl (T. H. Tsim)
- Newsgroups: sci.electronics
- Subject: How can I make RF-coils
- Message-ID: <1992Jul26.152358.19613@htsa.aha.nl>
- Date: 26 Jul 92 15:23:58 GMT
- Organization: Algemene Hogeschool Amsterdam, The Netherlands
- Lines: 21
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- Hi! Dear netters !
-
- In order to construct a RF-mixer oscillator, I need some info concerning
- RF inductivity-coils. You know, those small copper cans, which contains a
- plastic winding body and a turnable ferrit core.
-
- Could someone please tell me how to design such a device ? What kind of
- calculations should be made on diameter, wire thickness, ferrit length etc etc
-
- I searched allready in my personal library, but could find much about this
- topic.
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- The mixer I am making is tranfering 38.9 Mhz signals down to standard 10.7 Mhz,
- so I need to make an oscillator of 28.2 Mhz or 48.6 Mhz to make that possible.
- So far I didn't succeed in doing so with standard (Neosid) coils...
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- All suggestions are welcome...Thanks in advance!
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