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About lkong

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    Bay Area, CA

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  1. Is it too late? Please sign me up for: 2x GRHVxxx1x GRLV79xx1x GRLV78xx1x Main Board 1x miniT2
  2. lkong

    19V Linear PSU for PC

    Unfortunately for me, I have to supply [email protected] L-Adapter looked promising but only go up to 20V. I've ordered Smooth Like Butter Single Rail. PCB+parts+shipping will cost around $100. Hope this solves my problem.
  3. lkong

    19V Linear PSU for PC

    Got my 24V assembled and running. I dont think it handles high current nicely. with 2A load @ 24v, I have about 1V drop at the output.
  4. lkong

    Amplifier porn

    WTH is this??!!
  5. lkong


    https://www.audiosciencereview.com/forum/index.php?threads/rolling-op-amps-in-gustard-h20-headphone-amplifier.7407/ Not sure if this test is comprehensive, it doesnt look too good for Sparko.
  6. lkong

    goldenreference low voltage power supply

    Looking close to this: https://www.diyaudio.com/forums/group-buys/333844-ideal-bridge-rectifier-gb.html
  7. lkong

    What Are You Building Today

    Got my Voron 2.1 printer somewhat put together. Voron2.1 - Imgur.mp4
  8. lkong

    The Multi Amp aka Dynalo Mk2

    What worries me is what caused it, I simply tested the amp with 1k sine wave. I hope it's just the input jfet.
  9. lkong

    The Multi Amp aka Dynalo Mk2

    I think I let the magic smoke out by swapping into JFET input. Now the amp functions normally with input on + and G input, but not - and G. Should I worry about anything else than the J109? (another pair of J109 and K389 worked perfectly)
  10. Is there a high pass/low pass between electrostatic and dynamic? Or they are wired in parallel.
  11. lkong

    The analog thread.

    I'm intrigued, I wonder if it would be a good entry level turntable?
  12. lkong

    The Multi Amp aka Dynalo Mk2

    I think somewhere in this thread said 100k
  13. lkong

    And now what did you do TODAY?

    Had common.net installed one of these on my roof. Now I'm part of wireless mesh.
  14. lkong

    The Multi Amp aka Dynalo Mk2

    If I were to replace input BJTs with JFETs(toshiba or linear), what IDSS range should I aim for?
  15. lkong

    The ultimate DIY? A Stax SRM-T2!

    Are those holes drilled by a shotgun?