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About mdr30

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  1. mdr30

    Goodbye Tyll. Happy Travels

    A loss that Tyll retired. Wonder when that site closes down, haven’t read anything worthwile since his departure. Any news from his roadtrip?
  2. mdr30

    The Headcase Stax thread

    Anyone got a surplus 6-pin Amphenol plug or similar?
  3. mdr30

    The Headcase Stax thread

    Try this: mark@highendworkshop.co.uk
  4. mdr30

    and now for something completely different part 3

    What's the output impedance of the cfa?
  5. mdr30

    The Multi Amp aka Dynalo Mk2

    Humbuckers, wire'm outa phase, he-he.
  6. mdr30

    The Headcase Stax thread

    I got the NAD20, are those the same drivers? Doesn't sound too bad but not good enough to spend too much time on. Not Stax pinout. What about the diaphragm specs?
  7. mdr30

    Pinned thread has dissappeared

    Nothing stopping starting a new, often helpful in builds.
  8. mdr30

    goldenreference low voltage power supply

    Thanks for info - seems the voltage was just at the limit of the regulator's range. Changed back to original 1,5K resistors (from 1,8K) so now DC out is 19,5V (before 21,5V) from a AC18V transformer. All leds are on. Problem here is the mains moving from 210 to 230V and those swings seem to affect the whole GRLV system.
  9. mdr30

    goldenreference low voltage power supply

    Leds close to big caps light up, then dies. Same thing when powering up once again. Other leds unaffected. Amp boards OK (Dynalo). Any ideas what it could be?
  10. mdr30

    transconductance amp

    Is the amp sensitive to pulling the headphone plug while playing?
  11. Hi, 

    Built a Dynalo, a KGDT coming up and also a SS Dynahi.

    It's great that you publish your fine designs to us diy folks out here.

    The SS Dynahi: you wrote in one of your posts that you'd try to cram it into one box, that's what I'm hoping for. Did you find a suitable case? I've got two psu:s and transformers.




  12. mdr30

    Necessity amp

    Got a regular 24v psu (no minus voltage), 100k vol pot and a small case. Best amp to build?
  13. Do MPSA06/56 work for the output stage or do they burn? Any MPSW06/56 stashed away?
  14. I'm tempted to build this to get an amp that can drive my old orthos once and for all. Does anybody have boards, and is there a one box compact version?
  15. mdr30

    CFA3 balanced amp

    Has anyone built this balanced beast and tried it out?