[Amps] Class E amd and MRF492

[R.Measures]

On Mar 7, 2005, at 9:50 PM, riaan greef wrote:

> Greetings from South Africa
>
> I am looking forward to some interesting threads on this list.
>
> I wonder if anyone has some information on the Class E type 
> amplifiers.  I am designing some to operate at various HF bands and 
> wonder what pitfalls this project holds.

They are suited for single-frequency operation.  The difference between 
60% efficiency and 90% efficiency with the same input power is 0.3 
S-unit or 1.76db.
>
> Kind regards
>
> ZS4PR
>
> Riaan Greeff
> Research Technician : Applied Electronics and Electronic Communication
> Faculty of Engineering
> Vaal University of Technology
> (formerly Vaal Triangle Technikon)
> Private Bag X021
> Vanderbijlpark
> 1900
> South Africa
> Tel.: +27 16 950 9413
> Cell.: +27 83 581 8569
> Fax.: +27 16 950 9796
> Web: http://www.vut.ac.za
> e-mail.: riaang at vut.ac.za
> My Web: http://www.qsl.net/zs4pr
> My e-mail: zs4pr at qsl.net
> Packet.: ZS4PR at ZS0VTB.VTB.GAU.ZAF.AF
>
>
> TSUKUTLA NTSU TSUKUTLA, SOAR EAGLE SOAR
>
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>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org