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About mdr30

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  1. mdr30

    The Headcase Stax thread

    Were there measurements of width and length, more pairs available? Could maybe fit U70.
  2. mdr30


    Thanks all. Gonna be fun finding one of n:th solutions.
  3. mdr30


    Any suggestions on how to best place the power supply and amp boards before I start drilling? Transformer's place is given, and maybe the power supply should be placed at the back too with the amp boards facing the front (right). Thinking of hum and heat issues. Tubes will fit inside the box but I suspect holes on top lid above the tubes would be beneficial - top lid only has those small ventilations on the sides. Depends how hot the KGDT runs.
  4. mdr30

    The Headcase Stax thread

    Thanks. Let's see if I get them running with an adapter.
  5. mdr30

    The Headcase Stax thread

    Amphenol plugs above. Would it work having a common bias for L/R connecting Beyer ET1000 to a Stax amp? And does anyone know the pinout for the Beyer?
  6. 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?
  7. mdr30

    The Headcase Stax thread

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

    and now for something completely different part 3

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

    The Multi Amp aka Dynalo Mk2

    Humbuckers, wire'm outa phase, he-he.
  10. 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?
  11. mdr30

    Pinned thread has dissappeared

    Nothing stopping starting a new, often helpful in builds.
  12. 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.
  13. 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?
  14. mdr30

    transconductance amp

    Is the amp sensitive to pulling the headphone plug while playing?