Simple headphones out

oshifis · 15th February 2008, 12:49 PM

I have a tube preamplifier and I would like to add a HP out in it which is in par with the rest. Space is quite limited so I can not build an additional tube stage with output transformer. I am looking for some simple yet good quality solid-state circuit for my headphones (2x30 ohms). I think I need a gain between 2x and 5x. I have +12V available. Can I use an integrated buffer, like the BUF03 () which I believe is out of production) or the new AD815? Any ideas welcome.

Gordy · 15th February 2008, 05:01 PM

There is a lot of info here on tube and solid-state circuits:
http://headwize.com/projects/index.htm

If you go for a solid state buffer then take a look at the new National Semiconductor LME49600.

dsavitsk · 15th February 2008, 05:51 PM

Some simple discrete solid state buffers: http://www.diamondstar.de/jisbos/jisbos_overview.html and a place to buy the boards: http://www.amb.org/shop/

15th February 2008, 12:49 PM	#1
oshifis diyAudio Member Join Date: Mar 2004 Location: Budapest, Hungary	Simple headphones out I have a tube preamplifier and I would like to add a HP out in it which is in par with the rest. Space is quite limited so I can not build an additional tube stage with output transformer. I am looking for some simple yet good quality solid-state circuit for my headphones (2x30 ohms). I think I need a gain between 2x and 5x. I have +12V available. Can I use an integrated buffer, like the BUF03 () which I believe is out of production) or the new AD815? Any ideas welcome.

15th February 2008, 05:51 PM	#3
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	Some simple discrete solid state buffers: http://www.diamondstar.de/jisbos/jisbos_overview.html and a place to buy the boards: http://www.amb.org/shop/ __________________ http://www.ecpaudio.com :: http://diy.ecpaudio.com

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15th February 2008, 05:01 PM	#2
Gordy diyAudio Member Join Date: Nov 2006	There is a lot of info here on tube and solid-state circuits: http://headwize.com/projects/index.htm If you go for a solid state buffer then take a look at the new National Semiconductor LME49600.