Posted by KevinC (M) on May 26, 2009 at 10:05:16

I've developed a new form of the cascode CCS that is electrically identical, but shaped much differently than the ones that have been available for awhile. You can see a picture at the link. This compact current source has been designed to mount on stiff wire leads and has a small integral heat sink that allows up to 3 watts of dissipation. Like the other current sources it is now available with the higher voltage, better sounding IXYS IXTP01N100D MOSFET. (Thanks to Radu Dicher are deserved for the tip about the 1000v MOSFETs.)

I hope that you find this a useful variant.

Kevin Carter
K&K Audio
www.kandkaudio.com

• http://www.kandkaudio.com/accessories.html   (Open in New Window)

Edits: 05/29/09

• RE: New Cascode Surrent Source format now available - dhsettim 11:36:08 06/07/09 (2)
  In Reply to: RE: New Cascode Surrent Source format now available posted by KevinC on May 26, 2009 at 10:05:16

  Hi Kevin, what are the new boards dimensions(HxWxD) and the pin spacing please? Is there any facility for making a connection to the lower FET source ie the so called mu output? Cool board. thanks, tim
  
  

  ---

  • RE: New Cascode Surrent Source format now available - KevinC 11:56:52 06/07/09 (1)
    In Reply to: RE: New Cascode Surrent Source format now available posted by dhsettim on June 07, 2009 at 11:36:08

    0.7" x 1.7". pad spacing for external connection 0.45"
    
    There is no explicit source pad, but it would be easy to connect to the bottom end of the top MOSFET gate stopper to access the bottom device source.
    
    Kevin Carter
    K&K Audio
    www.kandkaudio.com
    
    

    ---

    • RE: New Cascode Surrent Source format now available - dhsettim 18:18:22 06/07/09 (0)
      In Reply to: RE: New Cascode Surrent Source format now available posted by KevinC on June 07, 2009 at 11:56:52

      Cool, thanks Kevin. cheers, tim
      
      

      ---
• RE: New Cascode Surrent Source format now available - Michael V 09:57:45 05/30/09 (1)
  In Reply to: RE: New Cascode Surrent Source format now available posted by KevinC on May 26, 2009 at 10:05:16

  Kevin,
  
  Thanks for the new CCS offering, I'll definitely be ordering some to try.
  
  Subjectively, how are the IXYS MOSFETs superior to the DN2540? The higher voltage rating is a big plus for use in shunt regulated power supplies.
  
  

  ---

  • RE: New Cascode Surrent Source format now available - KevinC 10:04:27 05/30/09 (0)
    In Reply to: RE: New Cascode Surrent Source format now available posted by Michael V on May 30, 2009 at 09:57:45

    The IXYS 1000v parts just give an overall cleaner presentation, so that, for example, words are more intelligible and "room sound" is clearer. There is no loss of perception of bandwidth.
    
    Kevin Carter
    K&K Audio
    www.kandkaudio.com
    
    

    ---
• RE: New Cascode Surrent Source format now available - JKT 13:52:15 05/26/09 (0)
  In Reply to: RE: New Cascode Surrent Source format now available posted by KevinC on May 26, 2009 at 10:05:16

  I used a pair of these as a simple drop-in replacement for the single MOSFET CCSs in my K&K phono pre. Very slick upgrade! Sonically transformed the unit. Less noise and more resolution. These are no-brainers for those with the earlier phono pre's.
  
  

  ---

Post a Followup:

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  Email  Next ] [ K&K Audio / Lundahl Transformers ]
[ Comment ] [ Edit ] [ Delete ] [ Copyright Warning! Click for Details ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2009, Audio Asylum, all rights reserved ] [ Go Green ] [ Take5 ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---