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24th December 2005, 11:19 AM
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#1 |
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diyAudio Member
Join Date: Jul 2004
Location: Iran/Shiraz
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Help me build a tube MIC preamp plz
hi everyone ...
i m so new in tubes , and i wanna try to build a tube mic preamp for recording vocals and instrument and connect it to my pc for recordin ... the only available tubes here are 12at7 and 12ax7 ... thnx for any schematic or any help ...
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Rest my eyes from the world. This dying place, it's so absurd. |
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24th December 2005, 12:09 PM
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#3 |
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diyAudio Member
Join Date: Apr 2001
Location: Moonee Ponds, Vic, Australia
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24th December 2005, 12:29 PM
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#4 |
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diyAudio Member
Join Date: Aug 2003
Location: Denmark
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If you can get 12AX7 and 12AT7, I'm sure you can get 12AU7 (ECC82) also. Have a look here: http://gyraf.dk/gy_pd/g9/g9pd.htm
It's not cheap, but it's good. Best regards, Mikkel C. Simonsen |
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24th December 2005, 03:10 PM
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#5 |
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diyAudio Member
Join Date: Jul 2004
Location: Iran/Shiraz
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thnx for reply
 i don think i can find any input/output transformer  ...here s lack of tubes , and i was very very happy when i finaly found these 12at7 and 12ax7 used tubes in very old repair stores ! i don think i ll find any other tubes in here , so plz can u help me w these tubes ? i just have 2 12at7 and one 12ax7 !!!
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Rest my eyes from the world. This dying place, it's so absurd. |
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24th December 2005, 09:50 PM
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#6 |
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diyAudio Member
Join Date: Sep 2004
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Hi,
http://geek.scorpiorising.ca/MicPreamp.html You can make a fine totem-output with a 12AT7 instead of 6N1P. Just don't expect to be driving any 600 ohm lines
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24th December 2005, 10:58 PM
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#7 | |
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diyAudio Member
Join Date: Oct 2003
Location: Germany
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Quote:
you can build now your own transformers from the famous german studio amp V72 , look here : http://www.irt.de/IRT/publikationen/...ch/V72_EUE.pdf and here is the circuit : http://www.irt.de/IRT/publikationen/braunbuch/V72.PDF and here is more informatiion of this old studio amps : http://www.irt.de/IRT/publikationen/braunbuch.htm Enjoy this old circuits and merry christmas and a happy new year , Alexander .
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No reason to get excited : Jimi Hendrix . |
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25th December 2005, 10:04 PM
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#8 |
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diyAudio Member
Join Date: Jul 2004
Location: Iran/Shiraz
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hi and thx a lot re 604 and geek
i hope i can build the geek preamp .. and bout re 604 .. i m so new in tubes , infact i know othin bout them .. can i build input output transformers w regular parts used for power transformers ???? what exactly should i know and have ??? happpppyy newww year everyone , and have goodluck
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