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Old 10th September 2005, 10:17 PM   #1
jogas is offline jogas  Italy
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Join Date: Jun 2004
Location: Milan
Default 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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Old 11th September 2005, 05:40 AM   #2
agent.5 is offline agent.5  United States
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http://www.tubecad.com/2004/blog0016.htm#MoreAikido


go to the bottom of the page. 12sn7 is just 6sn7 with 12.6V filament.
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Old 11th September 2005, 08:54 PM   #3
jogas is offline jogas  Italy
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Join Date: Jun 2004
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Thanks for the link,
do you think this is a real project or just an exercise?
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Old 11th September 2005, 08:57 PM   #4
agent.5 is offline agent.5  United States
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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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