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bhjazz

High Rollers
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bhjazz last won the day on February 5 2012

bhjazz had the most liked content!

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About bhjazz

  • Rank
    High Roller
  • Birthday December 31

Profile Information

  • Gender
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Converted

  • Interests
    DIY audio, Java, photography
  • Headphones
    HD-600, PS500e, ATH-ESW9, SE-310, E4S
  • Headphone Amps
    CKKIII, Headamp Pico Dac/amp, Twisted Pear Ventus, MHSS | Prev->Dynahi, Pimeta | Next -> Bijou
  • Sources
    DVP-S9000ES, Audio Alchemy DDS III, Dual CS-431 TT, Jolida FM tuner, Laptop+HiFace
  • Other Audio Gear
    Theta, Classe, Cardas, Bottlehead, ASC Tube Traps, Shunyata Hydra 8 & Hydra 2

Recent Profile Visitors

3,344 profile views
  1. Looks great! I recently added a K&K Step Up trafo to my own Delos. I liked this cart before, but now it's even closer to that spooky realism you hear about. Dee-lish.
  2. It's around here somewhere, I believe. The dent in the lower portion of the face plate was kindof getting to me... Probably happened during shipping here back in the day. So I ended up doing just a few things and it all locked in. I connected input grounds on the boards together, as well as the output grounds. This was weird to do since the left and right grounds were already connected at the Alps. Finally, I connected the ground from the output jack to the ground plane screw on the closest amp board. DEAD QUIET. Finally! Hey, many thanks to you Nate, Doug, Craig, and
  3. I had tried some of these connections before, but adding them together was the key. The amp has been dead quiet for an evening or two. More soon.
  4. You're definitely on to a piece of the puzzle, Craig. I actually can't get a connection to check resistance on the front/rear panel unless I have the probe inside a screw terminal. Yesterday I tried the trafo twist and was able to knock the noise down just a tick. Cool. I also found that the weird volume pot noise (noise at about 50% volume) was more due to unshielded headphone cable location (the ESW9 that I had on) than anything else. So now I'm just hearing it at 0 - 25% on the volume pot. This is pretty close to what I hear with a pair of Grados. I started measuring e
  5. Wow, you guys are great. I'm so glad I could come back here and get such straight answers. Many, many thanks. Nate: you did not have the boards there. You simply had the caps hanging off of the amp boards. I wanted to keep the output caps from being so fragile, so added the boards (from Jameco) and the bypass caps since they were staring at me. I have wired the two boards together underneath. I'll try the "transformer twist" first. Thanks! Ah, I did not check the offset. Will search for the pots as well, just in case. Thanks! The ground schem
  6. Pandemic Project #54: re-case the Ventus. So, some quick history: I won the raffle Nate had back in the day for the TwistedPear Ventus. It has worked fine and I have enjoyed it for years but I wanted it in a different chassis. Over the years I bought parts here and there. The case came from VT4C. I had top and bottom panels made with venting and finally got it all reinstalled recently, only to set up a vicious game of chase the ground loop noise for myself. The setup is, otherwise, the same as the original setup with all the same parts, just transplanted into a different case. The only
  7. Craig, thanks for the confirmation. I appreciate it. They are currently in-circuit, so that could mean they are storing a charge somewhere and staying open. I had suspected the diode-like properties had gone away, which prompted my post. I'll remove them from the circuit for testing and if they are, indeed, burned out, I would have to replace them anyway. Thanks again.
  8. I have a pair of 2n5457/5458 JFETs on a small board as part of a bias scheme for a 12AX7. The circuit also has a 9v battery. I cannot get the voltage dialed down, so I checked the JFETs. The resistance from gate to source (and gate to drain) read the same in both directions: roughly 1k ohm. These are dead, aren't they?
  9. I'm working on a Larocco prototype right now. I'm getting down to final assembly and realized that the Alps pot has a 20mm shaft, but it's going through a 10mm front panel. Most knobs have the set screw at 10mm so I think i'm guaranteed it will fall off at first use. Q1: Does anyone know of knobs (EDIT: that aren't fugly) which have the set screw at less than 10mm? Q2: This sounds hokey, but is anyone aware of a way to extend the shaft 5mm? If not, I suppose I'll have to drill out the inside of the panel to regain a few mm. Thanks.
  10. By the time 4 years rolls around digital formats will change, so...at that point the C1 will probably cost 60k.
  11. Cable done tonight and working great with the Onkyo Android player. Thanks again, Justin!
  12. Tuned in as well. This is working nicely with the Cabernet Franc.
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