Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

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: Eike DL3IKE <[email protected]>
Date: Fri, 29 Apr 2016 21:56:21 +0200
In-reply-to: <[email protected]om>
References: <[email protected]> <[email protected]om>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.7.2
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



<Prev in Thread] Current Thread [Next in Thread>