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About Blueman2

  • Rank
    Limited Edition Bronze Participant

Profile Information

  • Gender
  • Location
    Silicon Valley / Bay Area


  • Headphones
    SR-007mkii, SR-507, SR-Lambda Pro, SR-407
  • Headphone Amps
    KGSSHV Carbon, SRX-Plus, SRD-7 Pro
  • Sources
    Schiit Gungnir MultiBit, Gen5 USB, Balanced connections
  1. 2018 PCB Group Buy with TKD pots

    Tube boards are best to be 2mm.
  2. Blue Hawaii BJT Build thread

    BTW, are those EL34s Tung Sols? Edit: I see in the reflection they are Svetlana's. Great picture!
  3. Blue Hawaii BJT Build thread

    That is a work of art. Congratulations!!!! So many great ideas and touches, I want to steal them all!
  4. Shunt vs. linear reg

    I know JimL designed and built a shunt PSU for the SRX-Plus. Great article on it in AudioXpress I can send you if you want.
  5. 2018 PCB Group Buy with TKD pots

    Given the fixed setup cost, you might want to ask @sbelyo to get a quote for 2 or 3 sets rather than just 1 set. Price will only go up marginally, and you could probably sell the others later. Or keep them in case one or two boards blow up and need to be rebuilt!
  6. 2018 PCB Group Buy with TKD pots

    @sbelyo, Can you put me down for 1 additional pair of GRHV boards (so 3 pairs total)? And 1 additional GRLV board (3 total)? Will you be PMing everyone your paypal address for payment?
  7. 2018 PCB Group Buy with TKD pots

    And for Grounded Grid: Basically a Carbon with Tubes. Or others might call it a Blue Hawaii with updated design. I prefer the former description.
  8. 2018 PCB Group Buy with TKD pots

    Here is the Carbon v.6 Grounded. Latest version that I know of. kgsshvcarbonv6ground2.zip
  9. 2018 PCB Group Buy with TKD pots

    Adjusting up is usually not an issue. Adjusting down is more frowned upon since it can increase the cost to others.
  10. 2018 PCB Group Buy with TKD pots

    Did not see the Grounded Grid file on first page, but I think this is the latest version. gg.zip
  11. KGSSHV Carbon Build Thread

    The STN9260 is the closest I see at Mouser. Collector/Base gain is the only thing that is off a bit.
  12. 2018 PCB Group Buy with TKD pots

    Ah!!! Direct heated triodes! That is what dht meant. Thanks for the clarification. Removed the DHT files and left only the regular one.
  13. 2018 PCB Group Buy with TKD pots

    I think these are the latest gg Gerbers. I will add to the spreadsheet. Since tubed, I will spec 2mm board thickness. gg.zip Yes, these work well with the BH. Good clean power with the ability to add timer function for the HV section. This allows the tubes to warm up for about a minute before the HV kicks in. The only real question is whether to use the on board Low Voltage which the GRHV provides, or whether you want to go with separate GRLV board(s). I used the GRHV on board LV supply and it works fine on my BH-BJT.
  14. 2018 PCB Group Buy with TKD pots

    I would be in for another set of these boards. The BH-BJT has become my favorite amp these days. Just love it. I would like to have another set of boards in case my son or brother decide they cannot live without one. Here are the gerbers. kgbhver6sbipolar.zip
  15. 2018 PCB Group Buy with TKD pots

    Note to people signing up for the GRHV boards, this is the pair of boards (Left/Right or -/+). The pair are what you typically need for one high voltage amp. DronEvil, samsie and bluebyte60, you signed up for 4, which means enough for 4 HV power supplies. Just wanted to make sure you wanted that many.