luvdunhill

I wonder if one possibility is that they've narrowed the problem down to too high bias, and when the headphones (and amps) come in for repair, they lower the bias on the amp. I remember them being unwilling to just fix the headphones, you had to include the amp as well, so that's sorta the basis of my crazy theory.

I'm glad he hooked it up right

I'm increasingly finding that less capacitance sounds better than more. For the currents needed for a low power headphone amp, try to keep it around 100uF. I'd be curious to hear what you think.

I'd recommend upgrading to at least 2.1.0.2 http://diptrace.com/downloads/dipfree_en.exe

Chris: The newest (dev) version has a shape based autorouter that is much better. What version do you have?

getting in good with the organizers is first on my agenda

I wonder how close it needs to be effective? I'd be curious how it turns out.

I actually gave my second one to Goodwill yesterday

I use the $10 harbor freight one, that looks very similar to the one Nate posted. It works okay.

well, i had an aging bow fund that never seemed to have enough money in it to do anything useful... so I spent half of it, and let my wife have the other half for new house stuff. Funny thing, mpwi is that they claim to have various weights. I was sorta surprised by this, but they have to be requested from the factory. I choose 60g, because I've always had lighter bows (56-58g). I wanted to try this because my right hand technique (okay, swt61 I see you over there) pretty much has gone down hill since I haven't been playing much. So much so, that I wanted something that is sort of even across various spectra. Also, I've always been a "right shoulder shrugger" (sort of elevate and compress my right shoulder) and don't seem to really use my natural arm weight to draw sound from the instrument. I'm sort helping that a change in scenery will help me focus on this more.

damn Colin. Nice work there.

damn, nice stuff in this thread. Me, an empty box from Krell and this:

What's up with all the plane crashes these days? There was one this week about .25mi from where I work... Man Angry at IRS Crashes Plane into Office - CBS News For the truely bored, here's the suicide note: http://www.t35.com/embeddedart.txt

Kevin, that's just teflon tubing I believe.. well, at least that's what I would have used if it were me The black resistors (that are not Mills) are IRC mil-spec resistors. Very nice devices, but not cheap.

yeah, but less tubes is less better, right?

well, not to mention the case so, surely you have a ballpark full kit number you could throw out in strictest confidences of the hallows of Head Case

Well, in all fairness, it was quite evident from the name of the photo itself http://www.ecp.cc/images/L'es4-2.jpg

that's really, not LESSSSSSSSSSSSSSSSSSSSSSSSSS very sweet though!

very fancy, I like.

what's this 100va cover look like?

theywork better, but don't last as long in my experience

Cool, thanks for trying that! that's about what I was seeing too...

Think about for example a high current power amp that uses paralleled MOSFETs in push-pull configuration that manages to use a pair of CRC supplies glued together and get almost no DC offset...

well, if you're talking about differing deltas, then once the offset is zeroed, it won't fluctuate much. You'll have asymmetric clipping of course, but I don't think anyone is debating that point either. I'm more alluding to the rails tracking at different rates, let's assume no servo. SPICE is great for this, and that's what I used initially. Also, I had a few e-mails back and forth with Brian from TPA, as he was the one who initially challenged me to find a DC coupled amp, whose DC offset drifts (appreciably) with rails drifting at different rates. Again, distortion, clipping, etc. aren't a factor in this discussion, just DC offset. I suppose it depends how much you changed the output voltage on your bench supply? I'll see what I can dig up on my computer