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Re: RV: LF: TXing on VLF again, my first homemade linear PA! :-)

To: [email protected]
Subject: Re: RV: LF: TXing on VLF again, my first homemade linear PA! :-)
From: Alex R7NT <[email protected]>
Date: Sat, 30 Apr 2016 07:52:25 +0300
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Eike,
I use a different idea on LF from 2013
http://136.73.ru/d_pa/d_pa.htm    IRAUDAMP7S-150 - abt 200-220W RMS Output on 136 (one ch) at very long beacon's time with abt 90% total efficiency (~220V 50Hz -> 136kHz) now - I use Chinese full analogue ($38 2013) of  IRAUDAMP7S http://www.irf.com/reference-designs/design-family/_/N~1njcja#tab-tab2
The theory of Class D Audio (linear) PA http://www.irf.com/product-info/audio/classdtutorial2.pdf
I do not know how to achieve the very high stability to your ideas

2KW PA from the same Chinese manufacturer IRAUDAMP9 on ebay  http://goo.gl/MxYh5E  $179

73! Alex R7NT  136.73.ru

2016-04-29 22:56 GMT+03:00 Eike DL3IKE <[email protected]>:
Hi,

1. set switching frequency to LF or MF band
2. remove output filter
3. add LF or MF Lowpassfilter
4. input NF
5. have high efficiency AM-Transmitter?

stupid idea?

73s de Eike
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