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Doodlebug - USB Isolator - Page 20

post #286 of 290
Thread Starter 
Quote:
Originally Posted by Gijs View Post
 

Hey Everyone,

 

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!

 

KR,

 

Gijs

 

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. :D 

post #287 of 290

Thanks Tom! I hadn't checked these forums for a while and completely missed the arrival of the Torpedo III. You're not the only one with financial dilemma's now... For now, I will have to make do with the Torpedo I with a pair of Philips tubes. Oh well... But, joking aside, the Doodlebug is a massive upgrade to my little system! Keep up the good work!

post #288 of 290

Another happy builder here--finished up a Doodlebug and pupDAC from Tom's immaculate kits and added them to my work setup. Sounds wonderful... a bit too good for being at work :evil:

 

The ground plane on the Doodlebug was a little bit more challenging than I expected, I don't think I've ever had to turn my iron up as high as I did for that. All in all a lot of fun to build and great to listen to. Thanks tomb/Avro!

post #289 of 290

Looks interesting

post #290 of 290
Thread Starter 
Quote:
Originally Posted by hembergler View Post
 

Another happy builder here--finished up a Doodlebug and pupDAC from Tom's immaculate kits and added them to my work setup. Sounds wonderful... a bit too good for being at work :evil:

 

The ground plane on the Doodlebug was a little bit more challenging than I expected, I don't think I've ever had to turn my iron up as high as I did for that. All in all a lot of fun to build and great to listen to. Thanks tomb/Avro!


Yep - those are massive ground planes on the DoodleBug, but it contributes to the low noise of the power supply.

 

Thank you for the wonderful comments! :D

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