[Boatanchors] Calling Smart People: Class D Transmitter

[Ian Wilson]

Here is an appealing site with lots of material on Class E power amplifiers
for HF work: http://www.classeradio.com/

He has parts for sale at very modest prices (e.g. the FQA11N90 MOSFET
for $4, also the more-or-less-essential driver ICs).

No personal experience with this and no financial interest.

73, ian K3IMW


On Sat, Jan 31, 2015 at 2:49 PM, David Stinson <arc5 at ix.netcom.com> wrote:

> Yes, this is boatanchor related.  I promise.
>
> Hello Smarter-Than-Me-People:
> Take a look at this Class D 630 Meter transmitter:
>
> http://njdtechnologies.net/wp-content/uploads/2014/08/
> Schematic-for-25-watt.jpg
>
> If I scale all the parts at RF in the Drain circuit
> by matching reactances (assuming IR factors are not
> material), can I make this transmitter work on 40 Meters?
>
> Thanks,
> Dave S.
>
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