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- Newsgroups: rec.models.rc
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!magnus.acs.ohio-state.edu!sbbrown
- From: sbbrown@magnus.acs.ohio-state.edu (Stephen B. Brown)
- Subject: Re: What is a ferite bead?
- Message-ID: <1993Jan7.205618.7297@magnus.acs.ohio-state.edu>
- Sender: news@magnus.acs.ohio-state.edu
- Nntp-Posting-Host: top.magnus.acs.ohio-state.edu
- Organization: The Ohio State University Radio Observatory
- References: <1993Jan6.205946.10039@aio.jsc.nasa.gov> <1993Jan7.010850.4044@sequent.com> <C0HuEE.DAH@usenet.ucs.indiana.edu>
- Date: Thu, 7 Jan 1993 20:56:18 GMT
- Lines: 40
-
- In article <C0HuEE.DAH@usenet.ucs.indiana.edu> ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
- >Hmm.. I thought it was simply sintered iron. Interesting to find out
- >what this stuff is after all this while.
-
- You're probably thinking of iron powder toroid cores, which are distinct
- from ferrite cores, although they look the same and are used similarly.
- Ferrite have higher permeability but saturate more readily, and are
- generally used in low power applications.
-
- >How big do these get? I need a toroid about an inch and a half in
- >diameter to make an inductor for a power panel I am building.
-
- From a Palomar Engineers brochure:
- F-140 ferrite cores: OD 1.40" ID 0.90" HT 0.50"
- inductance 45-2250 mH/1000 turns, depending on the type of ferrite
- mix. $4.50
- T-157 iron powder core: OD 1.57" ID 0.95" HT 0.57"
- inductance 115-970 uH/100 turns, depending on the mix. This size
- is rated for 250W for mix 2 (0.25-10 MHz). $4.00
-
- Palomar's sizes go up to F-240 and T-400, but I've seen larger. I don't
- mean to endorse Palomar, but it's the only brochure I've got handy.
- Palomar Engineers
- P.O. Box 455
- Escondido, CA 92025
- (619) 747-3343
- >
- >
- >
- >
- >--
- >-------------------------------------------------------------------------------
- >Iskandar Taib | The only thing worse than Peach ala
- >Internet: NTAIB@SILVER.UCS.INDIANA.EDU | Frog is Frog ala Peach
- >Bitnet: NTAIB@IUBACS !
-
-
- --
- Steve Brown, N8HFI sbbrown@magnus.acs.ohio-state.edu
- Chief Engineer, The Ohio State University Radio Observatory ("Big Ear")
-