Re: LF: EA5DOM LF tests

[Andy Talbot <andy.g4jnt@gmail.com>]

http://www.g4jnt.com/PowerAmps.htm

Class E designs

http://www.g4jnt.com/137tx.pdf

http://www.g4jnt.com/QRO_500kHz_PA_Breadboard.pdf

'jnt

On 7 September 2016 at 12:33, VIGILANT Luis Fernández <luis@vigilant.es> wrote:

Ideas wellcome ! :-)

 

I like the W1YD design http://www.w1vd.com/137-500-500WTX.pdf

 

Don't need the keyer and would use an ICL7667 as dual mosfet driver

For the mosfets what I have here is a couple of IRFP3206

 

I have a linear transformer with 2x24V outputs. Can be good for an unregulated 48V supply

This is what the audio PA is using now 

 

73 de Luis

EA5DOM

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De: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] En nombre de DK7FC
Enviado el: miércoles, 07 de septiembre de 2016 12:58
Para: rsgb_lf_group@blacksheep.org
Asunto: Re: LF: EA5DOM LF tests

Am 07.09.2016 12:16, schrieb VIGILANT Luis Fernández:

 

Time for a D class PA  ;-)

Output filter and transformer core is already here, so should be easy to get some 50w or more (10dB)

That sounds good. Can you show a schematic that you want to build up? Which voltage, which FETs, which driver?

73, Stefan