Anyone have experience with this pp linear hexfet amp?

qwad · 13th March 2003, 04:58 PM

Hi all, while surfing the net I came across this interesting little circuit at, http:// home eunet cz/rysanek/pdf/irf-fet-amp.pdf the circuit is quite straight forward and easy to build and set up it uses2 IRF COMPLIMENTARY HEXFETS (iRF 532& 9532)IN A COMPLIMENTARY PP CONFIG PUTTING OUT 60w into4 ohm or 32w into 8, I would be interested in your valued opinions of this little circuit

regards to all,
tamás

JBL · 13th March 2003, 07:13 PM

Your link is mispelled.

qwad · 13th March 2003, 11:32 PM

Sorry, there seems to be a bit more to it that than I was led to beleive found the right address on another page

so try this , hope it works...http://webferret search.com/click? s...et% 2Damp%Epdf

hope this takes you there
Regards, TJB

Circlotron · 14th March 2003, 01:07 AM

http://home.eunet.cz/rysanek/pdf/irf-fet-amp.pdf

JBL · 14th March 2003, 01:32 AM

This is the application note from IRF about using their products for linear audio amp. Never built it and never heard of someone who built it either.

But IMHO just by looking to the circuit this is a very basic circuit and could be better in some aspect so I don't recommend it.

(BTW the original is at www.irf.com in the application note section)

AKSA · 14th March 2003, 09:55 AM

Good circuit.

Most of the difficult design issues addressed, well documented, simple.

Excellent start point for 'mosfet' sound.

Try it. You won't be disappointed.

Cheers,

Hugh

UrSv · 14th March 2003, 11:50 AM

Quote:

Originally posted by AKSA
Good circuit.

Most of the difficult design issues addressed, well documented, simple.

Excellent start point for 'mosfet' sound.

Try it. You won't be disappointed.

Cheers,

Hugh

I think also since this amplifier has been discussed in the forum quite a few times one could probably find something useful in:

HEX-FET 60W/4ohm Amplifier

13th March 2003, 04:58 PM	#1
qwad diyAudio Member Join Date: Mar 2003 Location: adelaide city of churches	Anyone have experience with this pp linear hexfet amp? Hi all, while surfing the net I came across this interesting little circuit at, http:// home eunet cz/rysanek/pdf/irf-fet-amp.pdf the circuit is quite straight forward and easy to build and set up it uses2 IRF COMPLIMENTARY HEXFETS (iRF 532& 9532)IN A COMPLIMENTARY PP CONFIG PUTTING OUT 60w into4 ohm or 32w into 8, I would be interested in your valued opinions of this little circuit regards to all, tamás __________________ we all have problems only some people have more than most.... long live the Magyar (Hungarians) in the world!

13th March 2003, 07:13 PM	#2
JBL diyAudio Member Join Date: Aug 2001 Location: Canada, N.-B.	Your link is mispelled. __________________ Jonathan Blanchard (J.Bl.) ---Nothing is impossible---

13th March 2003, 11:32 PM	#3
qwad diyAudio Member Join Date: Mar 2003 Location: adelaide city of churches	OOps! Sorry, there seems to be a bit more to it that than I was led to beleive found the right address on another page so try this , hope it works...http://webferret search.com/click? s...et% 2Damp%Epdf hope this takes you there Regards, TJB __________________ we all have problems only some people have more than most.... long live the Magyar (Hungarians) in the world!

14th March 2003, 01:07 AM	#4
Circlotron diyAudio Member Join Date: Jun 2002 Location: Melbourne, Australia	First address fixed. http://home.eunet.cz/rysanek/pdf/irf-fet-amp.pdf __________________ Best-ever T/S parameter spreadsheet. http://www.diyaudio.com/forums/multi...tml#post353269

14th March 2003, 01:32 AM	#5
JBL diyAudio Member Join Date: Aug 2001 Location: Canada, N.-B.	This is the application note from IRF about using their products for linear audio amp. Never built it and never heard of someone who built it either. But IMHO just by looking to the circuit this is a very basic circuit and could be better in some aspect so I don't recommend it. (BTW the original is at www.irf.com in the application note section) __________________ Jonathan Blanchard (J.Bl.) ---Nothing is impossible---


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14th March 2003, 09:55 AM	#6
AKSA diyAudio Member Join Date: Sep 2001 Location: Melbourne, Australia	Good circuit. Most of the difficult design issues addressed, well documented, simple. Excellent start point for 'mosfet' sound. Try it. You won't be disappointed. Cheers, Hugh __________________ Aspen Amplifiers P/L (Australia) www.aksaonline.com

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