balanced line stage schematic needed

jogas · 10th September 2005, 10:17 PM

Hi,
I have some 6sn7/VT231 and I would like to built a balanced line pre without i/o transformers...
Is there any schematic available?
Thanks in advance
Giuseppe

agent.5 · 11th September 2005, 05:40 AM

http://www.tubecad.com/2004/blog0016.htm#MoreAikido

go to the bottom of the page. 12sn7 is just 6sn7 with 12.6V filament.

jogas · 11th September 2005, 08:54 PM

Thanks for the link,
do you think this is a real project or just an exercise?

agent.5 · 11th September 2005, 08:57 PM

It is very real, and it is good stuff. Just do a search on Aikido in this forum. Bas even had PCB for sale.

10th September 2005, 10:17 PM	#1
jogas diyAudio Member Join Date: Jun 2004 Location: Milan	balanced line stage schematic needed Hi, I have some 6sn7/VT231 and I would like to built a balanced line pre without i/o transformers... Is there any schematic available? Thanks in advance Giuseppe

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11th September 2005, 05:40 AM	#2
agent.5 diyAudio Member Join Date: Aug 2003 Location: San Francisco, CA	http://www.tubecad.com/2004/blog0016.htm#MoreAikido go to the bottom of the page. 12sn7 is just 6sn7 with 12.6V filament.

11th September 2005, 08:54 PM	#3
jogas diyAudio Member Join Date: Jun 2004 Location: Milan	Thanks for the link, do you think this is a real project or just an exercise?

11th September 2005, 08:57 PM	#4
agent.5 diyAudio Member Join Date: Aug 2003 Location: San Francisco, CA	It is very real, and it is good stuff. Just do a search on Aikido in this forum. Bas even had PCB for sale.

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