Quad Spot

This Blog is about revising/upgrading the vintage Quad 33 to 909 amplifiers and the Revox taperecorders. Audio electronics and High End Hifi are also absolutely "on-topic" here. All pictures on this site (except the schematics) are Copyright Dada Electronics. You can use them after a written agreement (via e-mail) with the author. For Contact-information see www.dadaelectronics.eu

About Me

Name: Stefaan
Location: Antwerpen, Belgium

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Previous Posts

  • Misprint in Quad 99pre manual.
  • An exploration of the practical issues and benefit...
  • Bias Stability in a Quad 303
  • Counterfeit Warning 405 boards
  • Input Sensitivity of 'Power' amplifiers, the 306/6...
  • Mono blocking or Bi-Amping
  • PGA2311 based (remote) volume control
  • Dada Electronics has chosen Nigel Grey photograpy ...
  •  Dada proudly announces the new 405 v2 High End...
  • Important news about connecting a DaDa double PS...

Archives

  • November 2005
  • December 2005
  • January 2006
  • February 2006
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  • April 2006
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  • July 2006
  • August 2006
  • September 2006
  • October 2006
  • November 2006
  • January 2007
  • February 2007
  • March 2007
  • April 2007
  • May 2007
  • June 2007
  • August 2007
  • September 2007
  • October 2007
  • December 2007
  • January 2008
  • February 2008
  • March 2008
  • April 2008
  • May 2008
  • July 2008
  • August 2008
  • September 2008
  • December 2008
  • January 2009
  • February 2009
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  • April 2009
  • May 2009
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  • November 2009
  • December 2009
  • January 2010
  • February 2010
  • March 2010
  • April 2010
  • August 2010
  • September 2010
  • October 2010
  • December 2010
  • January 2011
  • February 2011
  • March 2011
  • May 2011
  • July 2011
  • January 2013
  • March 2013
  • April 2013
  • October 2013
  • October 2014
  • February 2015
  • April 2015
  • September 2017

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