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kevin gilmore

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kevin gilmore last won the day on April 26 2017

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About kevin gilmore

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    Staximus Maximus, Stax Mafia's Chief Cook and Bottle Washer

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  1. kevin gilmore

    CCS mod for 006t (t1 Variant )

    so here are 2 pictures of the screw being arc'd material from the screw is missing and the plastic is melted These are from the T2 power supply and the voltage was close to 600V
  2. kevin gilmore

    CCS mod for 006t (t1 Variant )

    I do have a picture of the t2 arcing, it was thru the screw to the center hole. After that most of us switched to ceramic and peek or similar screws. It's actually only 350v in this case, B+ to ground.but still, likes to arc. The thicker silpads without holes and spring clips also work but you have to drill extra holes in the heatsinks. 5.1k. Rn60d resistors is what most people use. i forgot about the bias line, should be 4.7M (or 5M) rn60d. Required for sr007,sr009 i might be able to add the 5.1k resistors to the board
  3. kevin gilmore

    CCS mod for 006t (t1 Variant )

    The intent was to attach the board to the side with the heatsinks vertical using these or similar. Board down, or Board up, really does not matter. http://www.newark.com/ettinger/14-86-313/mounting-bracket-steel-enclosures/dp/59M4493?ost=14.86.313&ddkey=http%3Aen-US%2FElement14_US%2Fsearch
  4. kevin gilmore

    Megatron Electrostatic Headphone Amplifier

    then you need to lower the resistance of r11 even further.
  5. kevin gilmore

    Megatron Electrostatic Headphone Amplifier

    something is wrong, with .85ma and 300v, should be 240 volts that is only 20 volts now to B+, the stage is likely to clip
  6. kevin gilmore

    goldenreference low voltage power supply

    Same pinout so they should work
  7. kevin gilmore

    Egmont/Tubecad with CCS

    feedback is absolutely not going to work, need resistors between cathodes and R3. But then the gain goes down And then you need C2. And there is not enough voltage gain to begin with.
  8. kevin gilmore

    unbalanced/balanced to balanced tube input

    here are both of them, not sure which one was in the group buy 3) Its a current mirror. So output voltage depends on impedance, currently 1100 ohms. Needs an output buffer if you are going to use it for a preamp.
  9. kevin gilmore

    Part Sourcing Assistance/Advice Thread

    the Teflon drifts a bit. So the diameter is .716 inch and the hole size is 81th have not found a socket that does not fit or fits tight yet.
  10. kevin gilmore

    goldenreference low voltage power supply

    no room for anything else...
  11. kevin gilmore

    The ultimate DIY? A Stax SRM-T2!

    dual primaries are fine everywhere in the world except japan.
  12. kevin gilmore

    The Multi Amp aka Dynalo Mk2

    yes they definitely work. where the schematic is, not sure at the moment. if there are troubles its usually the that340 chip.
  13. kevin gilmore

    The ultimate DIY? A Stax SRM-T2!

    All the SumR transformers I bought were universal voltage. 100,120,200,240 dual windings, one tap per winding They should already know exactly what these transformers are. It would probably take me a while to dig up the original quotes.
  14. kevin gilmore

    current feedback electrostatic amp

    ksc5026 is an in stock substitute for the npn
  15. kevin gilmore

    The making of a SuSy Dynahi

    that is amb's step attenuator setup and should be fairly easy to fix.