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Re: LF: Re: RE: 500 G3WCB QRV 503.500kHz

To: [email protected]
Subject: Re: LF: Re: RE: 500 G3WCB QRV 503.500kHz
From: "Johan H. Bodin" <[email protected]>
Date: Fri, 09 Mar 2007 23:43:51 +0100
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Hi Gary, Alan,

yes, as Alan says, class E amplifiers are very forgiving.

In addition to Tonne's program and Alan's Excel spreadsheet
you may want to have a look at Nathan Sokal's QEX article
to learn how to tune the amplifier for maximum efficiency
using an oscilloscope looking at the FET drain waveform.
Adjust the FET parallel C and the series LC tank to get a
"soft landing" before FET turn-on again.

  http://www.classeradio.com/sokal2corrected.pdf

By the way, Nathan Sokal, WA1HQC, "invented" class E!


Alan Melia skrev:
So will my Excel spreadsheet


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