>
> There are some nice high power filter designs at the following link which
> I
> believe are based upon G4SWX's work. These will handle a lot of power.
>
> http://www.pa3csg.hoeplakee.nl/filters/Filter.html
Thanks for the link. they look interesting.
>
> It is a good idea for a QRO VHF operator to use such a device these days.
I think there is only one home with an outside antenna left in the
neighborhood. Unfortunately they are my closest neighbor.
>
> 73
>
> Conrad G0RUZ
>
>
>
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] On
> Behalf Of Robert Bonner
> Sent: 10 July 2007 16:43
> To: 'Roger'; amps@contesting.com; 'W0UN -- John Brosnahan'
> Subject: Re: [Amps] Henry 2003 Filter for 20002A Amp
>
> I would think the tuning on this filter would require a spectrum analyzer
> or
> other high tech devices to set properly.
>
> I wouldn't touch it unless somebody has already been diddle sticking it.
>
> The 3002 device is completely fixed components.
>
> I'm having a bit of trouble following each reply as I've seen 2003, 2002,
> 3002, and 3003 referenced.
>
> But having the actual name in one post brought it home.
>
> The amps will run without the external filter if yours is screwed up.
> (DIDDLE STICKED)
> You will have to get a hold of somebody with the equipment to re-tweak it
> back in as it will require actually sweeping the thing and setting the
> attenuation points.
>
> I've never done one and Henry doesn't have anybody working anymore.
>
> BOB DD
>
> -----Original Message-----
> From: Roger [mailto:sub1@rogerhalstead.com]
> Sent: Tuesday, July 10, 2007 9:31 AM
> To: rbonner@qro.com; amps@contesting.com; W0UN -- John Brosnahan
> Subject: Re: [Amps] Henry 2003 Filter for 20002A Amp
>
> Thanks,
>
> This looks like a simple, inexpensive, and good remedy if needed.
>
> 73
>
> Roger (K8RI)
>
>
>> If you need to replace the Henry 3002 filter here is a good article on
>> a harmonic filter design with reference to the original article.
>>
>> 'Stub Filters Revisited' by John Regnault, G4SWX, Radio Communication
>> (RSGB), November 1994
>>
>> http://www.ifwtech.co.uk/g3sek/swxfiltr/swxfiltr.htm
>>
>> --John W0UN
>>
>>
>
>
>
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>
>
>
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