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Re: [Amps] RF Chokes

To: "Amps@contesting.com" <Amps@contesting.com>
Subject: Re: [Amps] RF Chokes
From: "Will Matney" <craxd1@ezwv.com>
Date: Mon, 31 Jan 2005 13:40:26 -0500
List-post: <mailto:amps@contesting.com>
Actually, the Z-28 was around 40 to 47 uH if I remember. They used some mighty fine resistance wire to wind it (low resistance though). An engineer there told me that was done to help with the resonance but's it's been so long I forget a lot of the details. They count on the hollow ceramic form and coating to dissapate heat so a finer wire could be used. However, I've sure changed a bunch of those orange boogers which was burnt in two too!

Best,

Will



On Mon, 31 Jan 2005 12:55:04 EST, <Dennis12Amplify@aol.com> wrote:

A 22 uH air coil choke can be wound on a 1/2" diameter form with a length
of about 2" using about 22 - 26 gage wire. If I recall, it takes about 90
turns, but don't hold me to that.



That sounds a lot like an OHMITE Z-28 choke..... Regards, Dennis O. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps


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