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Carrie USB-Powered Headphone Amplifier - Page 57

post #841 of 887
Quote:
Originally Posted by joneeboi View Post

 

2) I won't give it all away, but someone else may be starting up a group buy. Would if I could. I plan to start another one in 2012, but I'm too busy lately.



any progress on this? i would be interested in a couple if you do.

post #842 of 887

I would also love to get one or two when there is a new group buy (or when somebody has on left?)

post #843 of 887

If there were enough interest, say 50+ boards, and Joneeboi still has the files around, I think a group but would be cool. I wouldn't mind putting in the time and effort. Plus could use a few bords myself!
 

post #844 of 887

So what is the status with this project?

 

I've read the first 30 pages of this thread, which got as far as the first batch of prototypes. Was there ever another batch? Maybe a final official version?

 

The schematic and board from the second post seems to be the same as the prototype, so I'm guessing no revision was published after the prototypes.

 

I've been thinking about making something similar for the past months. I searched if such a thing already existed and found this thread. This is exactly what I had in mind. I'd be interested in 2 boards if another batch is planned. Though at this point I think we'd have to verify if the parts are still available...

post #845 of 887

It is about as final as it will get is my assumption; Joneeboi would be the one to answer that. The last revision works well. The Grub DAC that is in it and the Mini^3 it is based on are still available so I don't think there is an issue with parts. Sooo... all we we would need is enough interest and most importantly Joneeboi would have to allow us to produce the boards. I have made a half a dozen or so and love them and the folks I made them for as gifts treasure them and use them all the time. I would be in for 6-8 boards if this were to happen.

Billy
 

post #846 of 887

I finally got parts from another user.

Now I ran into some difficulties:

I soldered the Carrie (15V DCP), checked everything and applied 5V to it.

Output of the DCP is only about 2,5Vpp

so I unsoldered L1F to check if the output of the DCP would change... it did, Output showed 26Vpp!

 

I ordered a new DCP, assuming it is broken.

 

/edit: yep, works like a charm now smily_headphones1.gif


Edited by Borax - 1/29/13 at 11:18pm
post #847 of 887

Well well, look what showed up on my doorstep today:

 

 

TO-220 package for size reference, because I am blown away by how tiny these are. I expected them to be small, but not THAT small. I'm really impressed.

 

I hacked SMD circuits before, but never built a whole one. So to avoid destroying the priceless Carrie PCB, I will start with the GrubDAC. Only when I am satisfied with my skills will I assemble the Carrie.

 

Thanks, Tom! beerchug.gif

post #848 of 887

Good luck with your builds!

post #849 of 887
Hmmm.. from my past experience, the Carrie a a much easier to build than the GrubDac. Those smd opamps are very easy to work with, comparing with the PCM and WM on the Grub.
post #850 of 887
Quote:
Originally Posted by Lil' Knight View Post

Hmmm.. from my past experience, the Carrie a a much easier to build than the GrubDac. Those smd opamps are very easy to work with, comparing with the PCM and WM on the Grub.

I agree completely in principle.  Trouble is, who knows if there will ever be another Carrie board?  Whereas, I can send him a dozen new GrubDAC PCB's if he messes up. wink.gifwink.gif

post #851 of 887
bigsmile_face.gif
post #852 of 887

I would still be up for another round of carrie boards....

post #853 of 887
Quote:
Originally Posted by Billyk View Post

I would still be up for another round of carrie boards....

I would suggest you volunteer.

 

Contact Joneeboi and see if he'll supply you with the Gerbers.  Send them to Imagineering for a quote, divide by the number of boards to determine the per-board-price, add-in your packaging costs (you'll need to buy a bunch of padded envelopes), shipping costs (you'll need to estimate or set a single standard price) and Paypal fees, setup up a database/spreadsheet to save the names, addresses and whether they've paid, decide on the time period then contact Jude for permission, and announce that the Group Buy is open.

 

Good luck. smily_headphones1.gif

post #854 of 887

Thanks TomB!

I did just that, let's see what happens.

Billy

post #855 of 887

Hi all.

Sorry fo my google translate.

 

I have grubDAC. It works perfectly. :)

 

I need Carry USB Hedamp. Where i can order kit ?

 

Thx.

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