Tube DIY Asylum

• RE: sweep with speaker load ... - deathtube 667 14:44:27 04/05/14 (2)
  In Reply to: RE: It would be interesting to see the sweep with a speaker as a load posted by Chip647 on April 05, 2014 at 06:54:23

  
  
  

  
  I hooked up some Optimus Pro LX5's as a load for the OPT secondary.
  
  Just ran the signal into 10:1 attenuator probes to the soundcard.
  
  A microphone would probably have a different looking graph because of the room acoustics or whatever.
  
  The sweep is not razor flat, but I was not expecting it to be with a speaker load.
  
  This is the best I can do until I get a bit more familiar with FFT measurements.
  

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  • And a 16ohm load? - smart845 02:38:45 04/06/14 (1)
    In Reply to: RE: sweep with speaker load ... posted by deathtube 667 on April 05, 2014 at 14:44:27

    That would get back to a 5k load .
    Keep it up, doing a great job.
    
    

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    • RE: And a 16ohm load? - deathtube 667 05:09:44 04/06/14 (0)
      In Reply to: RE: And a 16ohm load? posted by smart845 on April 06, 2014 at 02:38:45

      The measurement was taken on 5K primary tap w/8 ohm speaker.
      

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