Matt Arend’s Audio Projects


Transcendent Sound Grounded Grid pictures – new May 10, 2002!
The preamp to complete my Transcendent Sound system.  Phono stages are op-amp based on application note AN-346 available at http://www.national.com (search for AN-346).  A really great project!
  •      Grounded Grid Front pic 1
  •      Grounded Grid Back pic 2
  •      Grounded Grid Internal pic 3
  •      Grounded Grid Internal pic 4
  •      Grounded Grid Relay Board pic 5
  •      Grounded Grid Phono Stage pic 6


    • Transcendent Sound Stereo OTL pictures
    These are pictures of my scratch built “Transcendent Sound Stereo OTL” project.  It took over a year from start to finish with many detours and changes!.  The sound is absolutely incredible!  Visit http://www.transcendentsound.com for more information.

    A lot of the parts I had laying around,  other parts were sourced from:
    http://www.triodeel.com  -  plate caps, 12AX7s
    http://www.halfin.com/shop  -  TRONAL EL509s (2.5 A heaters)
    http://www.mouser.com  and http://www.digikey.com  -  capacitors, resistors, etc
    http://www.tubesandmore.com  -  tube sockets
     


    Steve Bench solid state tube tester
    Steve has a great design for a solid state tube tester.  Visit http://members.aol.com/sbench101/.   It measures gm and mu directly, allowing various plate voltage and current to be set.  I've designed a pc board for the tester and am just finishing the construction.  Testing will begin shortly!