[Prev][Next][Index][Thread]
Re: Toroid forms
-
To: tesla-at-grendel.objinc-dot-com (Nikola Tesla aka Chip Atkinson)
-
Subject: Re: Toroid forms
-
From: "SROYS" <SROYS-at-radiology.ab.umd.edu>
-
Date: Mon, 30 Jan 1995 16:27:23 EDT
-
>Received: from comm1.ab.umd.edu by csn-dot-net with SMTP id AA28113 (5.65c/IDA-1.4.4 for <tesla-at-grendel.objinc-dot-com>); Mon, 30 Jan 1995 14:31:14 -0700
> Does anyone know where I can purchase toroid coil forms in the 2.0
> to 3.0 inch diameter range? Needed for RF chokes.
This might not be of any help to you, and it's also partly a question, but
I have seen surplus 60Hz current transformers at hamfests that were
that size or a little larger for a couple of bucks. At the time, I bought
one to use as a current transformer, and being the curious type, I took it
apart to see how it was made. It was essentially wire wound around
some type of ferrite toroid, and recently I started wondering if that type
of toroid would be useful as RF chokes? In other words, is a ferrite
toroid simply a ferrite toroid, or are they somehow tuned for a
particular frequency?
Steven Roys (sroys-at-radiology.ab.umd.edu)