luvdunhill

Heh, the custom stuff is wound in Canada still.

I suppose my questions would be: How much current does the amp draw (measured) and how much headroom do you have from the spec'ed current? Do you have any DC on the line or things like dimmer switches, etc. that would cause noise? Are signal grounds isolated from earth and in general where does the E pin go (have you implemented a ground loop breaker scheme, etc.)

Anyone need anything from this vendor? Need to hit a $250 minimum: https://www.rocelec.com/

It does indeed, it's a great performance. I stumbled upon it on eBay and nabbed it, but no it's not generally available, but a few in the series are available at some of the big places at blowout prices, as they are SACD layer only.

Good luck! I would probably watch Yahoo Auctions rather than sending a friend to hunt around Akihabara Town. I will be there weekend after next, though and if I see any I will grab them for KG amp fans - don't hold your breath though.

Yeah, they have to generate a new license.

Picked the wrong time to upgrade Diptrace. The old licenses aren't compatible with the new version so waiting for sales to help me upgrade. I am pretty sure my old license would work on the older version, if anyone was interested in a "slightly used" software license

Team 5 Pin!

I just hold them down with my tweezers and press "measure". Here are the curves:

Curve trace matching SOT transistors anyone?

Look at the TPS7A4700. There are some very creative layouts on eBay even. It's a 4uV noise design and pretty much plug and play.

Ok, got a differential front end (balanced-balanced and balanced-SE) working today and zeroed DC offset on a whole lot more of these little modules. Seems to perform really well!

That definitely wouldn't have happened on DannyB's forum.

Well, I might have to send some little do-dads for you to try out at some point.

The fabled L3 is likely going to be called the Apsara. I have built that topology in a power amp before, but the headphone amp has considerable refinements over that circuit (which is lovely nevertheless). The tube amp I had at the show was the Copenhagen which is a pentode amp. Also lovely - pentodes are underappreciated. Solid-State Buffer, or just a symbol of convience?

Kerry, for all that awesomeness, I still can't get behind: transformers in the rear (which stacks under the input stage and near PSU output connectors) and mounting transistors that way (versus angle bracket). Just my $0.02 though, beautiful work and what an amazing assent as a DIYer

Got some of the above to play around with, assuming no other suggestions from the peanut gallery

This is why I asked you to define what a short is. It seems you don't know what a short is, from your answer or how to measure one. Anyways, don't use the little beeping thing. Just measure resistance.

Ok, so what is the definition of a short then? Looks like your transformer and Ohm's Law came out unscathed.

As opposed to negative ohms? You want to measure resistance.

Define "short" within the largest precision available.

Made an offer on a house. First viewing four hours after listing and we have been informed by the owners that they have 8 showings scheduled tomorrow and Sunday and will make a decision then. I don't know why I even bother dealing with the real estate market, it's never been kind to me.

Looks interesting, I would probably build one.

Can anyone recommend a good surface mount, dual polarity, >50V, high hfe, in a power package that can do > 0.5W per package? I am looking at the PBSS4160PANPS but want more gain, if I can.