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  1. cobaltmute

    TI aquires National Semiconductor

    Thought some in the DIY community would be interested: http://newscenter.ti.com/Blogs/newsroom/archive/2011/04/04/ti-to-acquire-national-semiconductor-664670.aspx
  2. cobaltmute

    A TREAD sized regulator - the r1

    EDIT: Post 74 has a very much updated board for those that are looking for the latest info on the board, however there is a lot of good discussion in between that is worth reading about the revisions.   Acknowledgments:  Before I go any further, I want to acknowledge the work of Walt Jung. ...
  3. cobaltmute

    The SkeletonDAC

    Back in the days when tomb and I were working on bringing the grubDAC to production, we were looking at the kitting process and lamenting the fact that the PCM2706/7 were in such short supply and that the PCM2704/5 had huge quantities in stock.  We discussed the fact that it would be convenient...
  4. cobaltmute

    PCB panellization program

    Anybody have anything that puts more than one PCB design on a panel? I've seen a freeware program that appears to work with Eagle, but I'm not using Eagle and it barfs on my Gerbers. I've got 4 or 5 things I want to send out to production and would like them on 2oz copper. I can fit them all...
  5. cobaltmute

    The GrubDAC

    I made an off-handed comment in another thread and since people are asking for functionality in a board the haven't seen yet, I might as well make this public. I decided to build my father one of joneeboi's USB headphone amp for his birthday. I ordered myself some of his prototype boards and...
  6. cobaltmute

    my DAC design - pup1 DAC

    Over here, I showed off the fact that I made some nice looking coasters. I'd rather not do that again. So I'd like to get some comments before I send out my boards again. Considering that there is some many DIY DACS out there, why do another one? Well, quite simply, there was not one I...
  7. cobaltmute

    Can we save my boards?

    Okay, in a fit of whatever, I decided to order my PCBs before running them by the peer review that could happen here. However, it turns out I've been caught by something that I didn't expect. I had to setup the PCM2707 on my board. So I selected my footprint TQFP-32 from the available...
  8. cobaltmute

    IC: Group Buy Monofied Sijosae Buffer PCBs

    Over here, I started a discussion about making Monofied Sijosae buffer PCBs. I did a small personal run of the PCBs through BatchPCB and they have worked out quite well for me. In the Pimeta the fit was reasonable with the ground channel being quite tight against the rail caps. There always...
  9. cobaltmute

    Weller WES51 versus Hakko 936

    Any thoughts on these two? I'm figuring its about time to get a decent iron. I know that the Hakko is well loved around here. My only worry is that availability of Hakko in general in Canada seems to be poor as I've only be able to find it from one place (and I can't find the tips listed...
  10. cobaltmute

    monofied sijosae buffer pcb

    As I'm part way through my build of my Pimeta and with no BUF634s in sight almost anywhere (and the one I can find are SMT), I'm looking at using the Monofied Sijosae buffers Now I did try to build one on perfboard and while it is ok and likely usable, I'm not at all happy at how it came...
  11. cobaltmute

    Pimeta Buffers

    So my Pimeta parts are on the way and I have everything I need, except of course the buffers as no-one has the BUF634P in stock. Digikey is saying mid October before arrival and Mouser is saying mid April 2009 for delivery times. I've read that some of the alternatives are AD811AN and...
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