Amp/Preamp Asylum

• Wrong forum.. - bare 08:16:34 07/12/14 (0)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  Try Diyaudio.com or one of the several others where people build/develop circuits rather than talk about it :-)
  

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• Eli has shared this for awhile. - Uncle Mike 16:06:12 07/10/14 (1)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  And while you my be obsessed with tubes you need to think of the realities of phono gain. You would be better served with SS gain stages. This schematic Does give you a little satisfaction.

  • http://www.audioasylum.com/forums/vintage/messages/22/224292   (Open in New Window)

  
  

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  • RE: Eli has shared this for awhile. - vinnie2 03:46:32 07/11/14 (0)
    In Reply to: RE: Eli has shared this for awhile. posted by Uncle Mike on July 10, 2014 at 16:06:12

    Thanks for the info. I saw that when I was doing my initial research. May have to bread board it to hear how it sounds compared to the 6dj8.
    My preamp is line level, so I just need a phono pre. i am happy with everything else.
    

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• More info....... - vinnie2 13:58:48 07/10/14 (0)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  Forgot to mention a couple of things that do effect my choice.... I want a tube phono preamp rather than solid state ('cept maybe for using dc on the filaments) and I need quite a bit of gain it appears.
  I found the one at the attached link and breadboarded one channel of it this morning. After tweaking it here and there with different caps and a little tube rolling I kind of like the sound of it and it has enough gain to do the job. Have any of you ever used one of these?

  • http://phonoclone.com/diy-pho3.html   (Open in New Window)

  
  

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  Edits: 07/10/14   07/10/14
• RE: Recommendations for a scratch build phono pre? - Awe-d-o-file 11:41:44 07/10/14 (0)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  Tell us your cartridge (output) and how much gain you want/need. MM or MC? I assume you use an active preamp. This affects what kind of output voltage and impedance from the phono section that is a good match.
  
  
  
  ET
  

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• Maybe Pete Millet - mt10425 04:57:25 07/10/14 (0)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  has one listed somewhere.
  
  "It's all fun and games until someone doesn't pick up on the sarcasm"
  
  

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• RE: Recommendations for a scratch build phono pre? - reuben 03:50:28 07/10/14 (0)
  In Reply to: RE: Recommendations for a scratch build phono pre? posted by vinnie2 on July 10, 2014 at 02:42:22

  Look at the one on the datasheet for the LME49710. Match the caps, build, and be happy.

  -reub

  • Datasheet   (Open in New Window)

  
  

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  Edits: 07/10/14

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