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sorenb

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Everything posted by sorenb

  1. sorenb
    as in they don't work at all??
  2. sorenb
    my own thinking in this rgrd was based on the recommandation for a 150VA for the KGSShv ...and since the Carbon pulls 4*16mA more I ended up at 200VA The Blue Hawaii is pulling a lot more I guess ....at least if you take the heathers into account? I guess it boils down to the "reasonable factor" for how much overhead you want ...
  3. sorenb
    Sorry, please try again
  4. sorenb
    Please share your calculation behind that recommandation ...
  5. sorenb
    Now, Kerry is currently about to test the latest revision of the Kevin Gilmore Digital Attenuator, and since a few people have asked for a Group Buy we hereby probe the interest. Kerry is mostly inclined for the 50k version. Please put your request into the referenced Google spreadsheet. The information in the sheet in rgrds to price is from the former group buy and only to give an idea of where we might end with this group buy. As last time we will investigate cost of fully assembled boards as well as bare boards (with stencil) if people wants to DIY. https://docs.google.com/spreadsheets/d/131vk972PEIm-J4r5IbZT7IP7CAqoMfP4j0RfE0J0xeM/edit?usp=sharing Let me know if the sheet can be improved/enhanced/misses something or whatever The original thread: Please note that one board for two channel balanced operations
  6. sorenb
    will this be available for a GB ?
  7. sorenb
    Corrected. Not in C5, but in the referenced cell. Thanks for notifying. I've added a column, that calculates the saving for each member participating in the GB vs buying the same amount directly. This is done so each participant can see if the shipping added, might eat up the saving. Insanity made that point, thanks to Insanity.
  8. sorenb
    In rgrds to the GB for capacitors, "Insanity" have found that Farnell.com have the Kemet 680uF/550V at 32.43 USD @ +100 I'll add it to the spreadsheet. Feel free to choose either Mundorf/Kemet Spreadsheet has been change to automaically selecting the right price (based on Farnell quote) and the total amount. The price for each member has also been added, to make it a bit easier. Thanks Insanity
  9. sorenb
    about the same as a KGSShv
  10. sorenb
    Anyone have an explanation why the UL-standard seems is more demanding in comparison with MIL spec? https://edeskv2.belden.com/products/index.cfm?event=printPrev&pnum=83027&ut=English I have looked at this Belden wire ... rated at 1kV Mil Spec ...but only 300V UL standard .... it seems to 'fail' on the thickness of the insulation: the Belden wire has 0.015" UL requires minimum 0.020" for 600V and 0.022" for 1000V
  11. sorenb
    ...there needs to be an interest in more than 92 as it is right now, before it is worth the effort I guess
  12. sorenb
    Following your link, I can see that they reference a Mundorf datasheet where the 680uF is rated at 550V ...like it says on the Mundorf site ....so I guess Mundorf stick to 550V ,ok?
  13. sorenb
    I'd like to buy
  14. sorenb
    The Mjolnir KGSSHV-Mini is a pretty fine amp - not a full blown KGSSHV, simpler PSU and a bit lower voltage swing but more current as you have been told ... I guess it also depends on how old/new you 009s are ....the early one I have heard sounded artificial ....there has been postings on the newer 009s being better though Have you been searching Head-Fi? there might be loads of comments in this regard
  15. sorenb
    As far as I remember NoPants asked for the Mundorf Caps option, and Kevin change the layout accordingly. The Mundorf features their 4pin technology. Kevin says he uses the 4pin configuration on the cap before regulation, but shorts it on the cap at the output (uses the cap as a regular cap). As for the advantage it probably boils down to personal taste and belief As for the spreadsheet, the GB is intended for those who wants 680uF/550V. I got quote on 470uF, 580uF(custom) and 680uF ....I guess the price difference isn't huge, so I guess most wants the 680uF? (have changed the spreadsheet to indicate this, and moved the Caps GB to separate sheet in the same workbook) ...but as KingOfSnake states: they are massive huge, and that goes for both the Kemet and Mundorf. Might be something to consider when planning for a chassie.
  16. sorenb
    ok, ok, lets make a fuzz about it ... I'd rather make it eksplicit that one wants v5 board .... feel free to split hair about this
  17. sorenb
  18. sorenb
    Spreadsheet updated with column for Carbon amp v5. Please make your changes there.
  19. sorenb
    The Golden Ref HV PSU needs four caps, if you're building the HV900 it needs double Update the post: 470uF will be 24.20€/pcs (400pcs order) 580uF was 26.90€/pcs (400pcs order) 680uF will be 28.20€/pcs (400pcs order)
  20. sorenb
    Actually 580uF ...mixed up my request with the Kemet value ...so I got a price on a 'special' value ..have asked for a price on both 470uF and 680uF ...I'll post as soon as I get the quote.
  21. sorenb
    I've asked for a quote for 400 of these http://mundorf.com/en/?category=hifi&menu=caps_power&content=mlytic_hv_4pin 470uF will be 24.20€/pcs (400pcs order) 580uF was 26.90€/pcs (400pcs order) 680uF will be 28.20€/pcs (400pcs order) I have put in a column in the GB spreadsheet for this purpose.
  22. sorenb
    maybe this is what you're looking for: http://www.aavid.com/product-group/accessories/washers ...though I don't think you can find washers > 5,5mm height the crees are almost 5,5mm thick ... I used plastic screws and the aluminum oxide pad As for the diode, I believe I used this http://dk.mouser.com/ProductDetail/Fairchild-Semiconductor/1N914/?qs=sGAEpiMZZMtoHjESLttvkik5r7Tz9frEDfTvpuQlhm0%3d
  23. sorenb
    isn't at pi filter there to reduce ripple? if the caps doesn't ground the spikes why should the coil resist those?
  24. sorenb
    Can you provide a bit more information on those noise spikes you see? Also under which circumstances, bandwidth and current pulled for instance ? Can you provide some comparison to the standard LV 78/7915 type supply? To sum up: - the GR LV can regulate at 3V but would be better at 4-5V,? and can be used up to 60V depending on components used? - the GR HV can regulate at 8V?
  25. sorenb
    does that apply to the dual made of two singles in series, or only to the dual made of complementary parts?
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