[Amps] New HF amplifier

[Jeff Blaine]

Denny,

I believe that was Larry's point also.  It's certainly my observation here. 
Does not take much of that power floating around in the cores to warm those 
babys up either.  :)

73/jeff/ac0c
www.ac0c.com


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From: "Dennis OConnor" <ad4hk2004 at yahoo.com>
Sent: Wednesday, August 04, 2010 7:21 PM
To: <amps at contesting.com>
Subject: Re: [Amps] New HF amplifier

> "So you're saying Alpha, Ten-Tec, Jim W8ZR, Jerry K8RA and myself are all 
> wrong and their designs don't or wont work?"
>
> ummmm, very short and very blunt answer, yes...
>
> Longer, more nuanced answer, those designs will not work "optimally" 
> because of lost energy (heat) from the pumping of out of phase currents in 
> the toroid cores that have taps and unused turns - energy that should have 
> gone out the coax...
>
> For a proper design, go look at the Palstar HF2500DX... Each band has it's 
> own separate toroid, uncoupled from the turns on the unused cores, so that 
> there are no out of phase currents induced into the operating core...
>
> If my answer is over blunt, I apologize -  you asked the question and that 
> is my answer... I am not looking to get into a squabble with anyone...
>
> cheers
> denny / k8do
>
>
>
>
>
>
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