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<CAL-VeeMSYMEzZtTf_7On8nsWEcwvqJnXd7ZiHC8XdeC3uoFtyQ@mail.gmail.com>
From: Eike DL3IKE <dl3ike@web.de>
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Subject: Re: RV: LF: TXing on VLF again, my first homemade linear PA! :-)
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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
Am 28.04.2016 um 19:58 schrieb Alex R7NT:
> maybe IRAUDAMP9 on
> http://www.irf.com/reference-designs/design-family/_/N~1njcja#tab-tab2
> <http://www.irf.com/reference-designs/design-family/_/N%7E1njcja#tab-tab2>
> but $399
> ebay http://goo.gl/mjUCma x2 in bridges + - abt 2KW abt $160
>
> 73! Alex R7NT 136.73.ru <http://136.73.ru/>
>
>
> 2016-04-27 21:43 GMT+03:00 Vincent Stallbaum <info@vsas.de
> <mailto:info@vsas.de>>:
>
> Yes, if ebay offer's a class D 2KW "VLF" amplifier I'll join the
> dreamers band TX OM's.
>
> vy73's de DL6II
>
>
>
> Von meinem Samsung Gerät gesendet.
>
>
> -------- UrsprĂźngliche Nachricht --------
> Von: Eike DL3IKE <dl3ike@web.de <mailto:dl3ike@web.de>>
> Datum: 27.04.2016 20:11 (GMT+01:00)
> An: rsgb_lf_group@blacksheep.org
> <mailto:rsgb_lf_group@blacksheep.org>
> Betreff: Re: RV: LF: TXing on VLF again, my first homemade linear
> PA! :-)
>
> These class d audio-amps are getting cheaper and cheaper...
> Using one of this modules as a power supply for an LF/MF class d
> rf-amp could be an interesting idea:
> http://www.ebay.de/itm/New-IRAUD350-700W-4ohm-Mono-Audio-Power-Amplifier-Class-D-AMP-Board-Assemble-AMP-/262190882456?hash=item3d0bcb5e98:g:hvIAAOSwbdpWbmt9
>
> 73s de Eike
>
>
> Am 27.04.2016 um 19:41 schrieb VIGILANT Luis FernĂĄndez:
>> Oops ! Sorry. Link included now
>> This site has a design with the
>> TPA3151D2http://www.360customs.de/en/2015/07/tpa3251d2-2-x-175w-stereo-350w-mono/
>> At the bottom there is a chat and some people asked about PCBs
>> The answer is: If you want to build one up for yourself, pcbs are
>> available.
>> But no further information. You can contact with the author for
>> details
>> 73 de Luis
>> EA5DOM
>
>
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<div class="moz-cite-prefix">Hi,<br>
<br>
1. set switching frequency to LF or MF band <br>
2. remove output filter<br>
3. add LF or MF Lowpassfilter<br>
4. input NF<br>
5. have high efficiency AM-Transmitter?<br>
<br>
stupid idea?<br>
<br>
73s de Eike<br>
<br>
<br>
Am 28.04.2016 um 19:58 schrieb Alex R7NT:<br>
</div>
<blockquote
cite="mid:CAL-VeeMSYMEzZtTf_7On8nsWEcwvqJnXd7ZiHC8XdeC3uoFtyQ@mail.gmail.com"
type="cite">
<div dir="ltr">maybe IRAUDAMP9 on <a moz-do-not-send="true"
href="http://www.irf.com/reference-designs/design-family/_/N%7E1njcja#tab-tab2">http://www.irf.com/reference-designs/design-family/_/N~1njcja#tab-tab2</a>
 but $399
<div>ebay  <a moz-do-not-send="true" href="http://goo.gl/mjUCma">http://goo.gl/mjUCma</a>
x2 in bridges + Â - abt 2KW Â Â abt $160<br>
<div>
<div>Â <br>
<div class="gmail_signature">
<div dir="ltr">73! Alex R7NT Â <a moz-do-not-send="true"
href="http://136.73.ru/" target="_blank">136.73.ru</a></div>
</div>
</div>
<div><br>
</div>
</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2016-04-27 21:43 GMT+03:00 Vincent
Stallbaum <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:info@vsas.de" target="_blank">info@vsas.de</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div>
<div>Yes, if ebay offer's a class D 2KW "VLF" amplifier
I'll join the dreamers band TX OM's.</div>
<div><br>
</div>
<div>vy73's de DL6II</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="font-size:85%;color:rgb(87,87,87)">Von
meinem Samsung Gerät gesendet.</div>
</div>
<br>
<br>
-------- UrsprĂźngliche Nachricht --------<br>
Von: Eike DL3IKE <<a moz-do-not-send="true"
href="mailto:dl3ike@web.de" target="_blank">dl3ike@web.de</a>>
<br>
Datum: 27.04.2016 20:11 (GMT+01:00) <br>
An: <a moz-do-not-send="true"
href="mailto:rsgb_lf_group@blacksheep.org"
target="_blank">rsgb_lf_group@blacksheep.org</a> <br>
Betreff: Re: RV: LF: TXing on VLF again, my first
homemade linear PA! :-) <br>
<div>
<div class="h5"><br>
<div>These class d audio-amps are getting cheaper
and cheaper...<br>
Using one of this modules as a power supply for an
LF/MF class d rf-amp could be an interesting
idea:<br>
 <a moz-do-not-send="true"
href="http://www.ebay.de/itm/New-IRAUD350-700W-4ohm-Mono-Audio-Power-Amplifier-Class-D-AMP-Board-Assemble-AMP-/262190882456?hash=item3d0bcb5e98:g:hvIAAOSwbdpWbmt9"
target="_blank">http://www.ebay.de/itm/New-IRAUD350-700W-4ohm-Mono-Audio-Power-Amplifier-Class-D-AMP-Board-Assemble-AMP-/262190882456?hash=item3d0bcb5e98:g:hvIAAOSwbdpWbmt9</a><br>
<br>
73s de Eike<br>
<br>
<br>
Am 27.04.2016 um 19:41 schrieb VIGILANT Luis
FernĂĄndez:<br>
</div>
<blockquote type="cite">
<div dir="ltr" align="left"><font size="2"
color="#0000ff" face="Arial"><span>Oops !
Sorry. Link included now</span></font></div>
<div dir="ltr" align="left">Â </div>
<div dir="ltr" align="left"><span><font
face="Arial"><font color="#0000ff"><font
size="2">This site has a design with the
TPA3151D2<span>Â Â Â <a
moz-do-not-send="true"
href="http://www.360customs.de/en/2015/07/tpa3251d2-2-x-175w-stereo-350w-mono/"
target="_blank"><a class="moz-txt-link-freetext" href="http://www.360customs.de/en/2015/07/tpa3251d2-2-x-175w-stereo-350w-mono/">http://www.360customs.de/en/2015/07/tpa3251d2-2-x-175w-stereo-350w-mono/</a></a></span></font></font></font></span></div>
<div dir="ltr" align="left"><span></span>Â </div>
<div dir="ltr" align="left"><span><font size="2"
color="#0000ff" face="Arial">At the bottom
there is a chat and some people asked about
PCBs</font></span></div>
<div dir="ltr" align="left"><span><font size="2"
color="#0000ff" face="Arial">The answer is:
</font></span><span><font size="2"
color="#0000ff" face="Arial"><span
style="text-align:left;text-transform:none;text-indent:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:14px;line-height:22px;font-family:Lato,Arial,sans-serif;white-space:normal;float:none;letter-spacing:normal;color:rgb(119,119,119);word-spacing:0px;display:inline!important;background-color:rgb(255,255,255)">If
you want to build one up for yourself,
pcbs are available.</span></font></span></div>
<div dir="ltr" align="left"><span><span
style="text-align:left;text-transform:none;text-indent:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:14px;line-height:22px;font-family:Lato,Arial,sans-serif;white-space:normal;float:none;letter-spacing:normal;color:rgb(119,119,119);word-spacing:0px;display:inline!important;background-color:rgb(255,255,255)"></span></span>Â </div>
<div dir="ltr" align="left"><span><span
style="text-align:left;text-transform:none;text-indent:0px;font-style:normal;font-variant:normal;font-weight:normal;font-stretch:normal;font-size:14px;line-height:22px;font-family:Lato,Arial,sans-serif;white-space:normal;float:none;letter-spacing:normal;color:rgb(119,119,119);word-spacing:0px;display:inline!important;background-color:rgb(255,255,255)">
<div dir="ltr" align="left"><span><font
size="2" color="#0000ff" face="Arial">But
no further information. You can
contact with the author for details</font></span></div>
<div dir="ltr" align="left"><span></span>Â </div>
<div dir="ltr" align="left"><span>
<div align="left"><font size="2"
face="Arial">73 de Luis</font></div>
<div align="left"><font size="2"
face="Arial">EA5DOM</font></div>
</span></div>
</span></span></div>
</blockquote>
<br>
</div>
</div>
</div>
</blockquote>
</div>
<div><br>
</div>
</div>
</div>
</blockquote>
<br>
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