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

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Subject:	Re: RV: LF: TXing on VLF again, my first homemade linear PA! :-)
From:	Eike DL3IKE <[email protected]>
Date:	Fri, 29 Apr 2016 21:56:21 +0200
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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 but $399
ebay http://goo.gl/mjUCma x2 in bridges + - abt 2KW abt $160

73! Alex R7NT 136.73.ru

2016-04-27 21:43 GMT+03:00 Vincent Stallbaum <[email protected]>:

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.

-------- Ursprüngliche Nachricht --------
Von: Eike DL3IKE <[email protected]>
Datum: 27.04.2016 20:11 (GMT+01:00)
An: [email protected]
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 Fernández:

Oops ! Sorry. Link included now

This site has a design with the TPA3151D2 http://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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