[Amps] confused reading amidon ferrite specs?

[R at contesting.com]

On Mar 7, 2006, at 7:24 AM, Dan Sawyer wrote:

> I have to say I am very confused reading Amidon ferrite core specs.
>
> http://www.amidoncorp.com/aai_ferritecores.htm
>
> As an example in the paragraph description material 61 and 67 cores are
> good for transformers up to 200 MHz while in the spec sheet the
> transformer claim is 500 MHz and 1000 MHz respectively.
>
> I am interested in building a solid state 1200 watt power amp for 160
> through 6 meters. What are the materials suitable for the input and
> output transformers in that range?

Finding a transistor that is designed to be stable from 1.8 to 51Mhz is 
also a consideration.
>
> Thanks - Dan - kb0qil
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Rich Measures, 805.386.3734, AG6K, www.somis.org