Topband: Common mode chokes

[Pete Smith]

Many coffee manufacturers now make big plastic enclosures that are about 
9 inches on a side.  I've often thought that you could neatly mount 
almost any small network in one of them, so lonmg as the lid was down.

73, Pete N4ZR

On 7/7/2009 11:28 AM, Jim Brown wrote:
> On Mon, 06 Jul 2009 15:55:15 +0000, doktorij at bellsouth.net wrote:
>
>> Try a large Folger's or similar plastic coffee can to house the
>> device Jim mentioned.
>
> Caution with that, Julius. The capacitance from one end of the choke
> to the other is a critical component of the choke. A conductive
> enclosure can change that significantly by lowering the resonant
> frequency. That's ok -- IF you take that capacitance into account.
> Ditto with taping a wound coaxial choke to the boom of a Yagi.
>
> 73,
>
> Jim K9YC
>
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