>>> Both Freescale and NXP discuss mounting the latest high power
>>> devices in application notes. For example, see NXP #10800 para. 2.5.
>> Sorry, that should be AN10858.
>>
>> www.nxp.com/documents/application_note/AN10858.pdf
>>
> To me they look kinda impractical for linear techniques and particularly
> at HF.
> A 1200 watt transistor to get an average of 200 out?
>
> 73
>
> Roger (K8RI)
Certainly wasted at hf, and I'd have worries about ruggedness at
lower frequencies. Its a 1200W transistor for 1200W peak out with
digital radio or TV signals, which have a lower average power -
but you need some linearity and headroom to keep the IMD under
control.
There's lots of info. from N1DPM on a cw version for 144MHz on the
VK4DD forum. That thread is currently public without needing to
register (it's free) at http://www.vk4dd.com/forum/
Steve
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