I just finished building my Doodlebug, and am currently enjoying a well-deserved listen to my "reference album" (and a beer :) ). The build itself I found to be quite easy, especially using the build-by-photo instructions on the diyfroums.org-site. I used a 25W soldering-iron, which, for some parts was not quite sufficient for parts connecting to the ground-plane, due to heat-drainage. At some point, I will give the whole thing a once-over with a bit more heat.
I have a question that may have already be answered, but I couldn't find the answer to, namely: to what voltage should I set the Doodlebug when I have it connected to the pupDAC? For now, I've set it to 5.25V (using a 9VAC 500mA wallwart).
I hope anyone can help out!
You're perfect! 5.25VDC is exactly what's needed to ensure that all the numerous regulators on the PupDAC have sufficient "headroom" to maintain regulation.
Many thanks for the kind comments and congrats on your listening! The PupDAC with the DoodleBug (set to 5.25VDC) is my primary source. It sounds glorious with the Torpedo III. I may be shilling, but that's my end game so far. I am now trying my best to figure out how to finance a pair of HD800's.