Tuesday, March 24, 2015

A Box Filled with DDS

 
I put this in a box this morning.  Arduino + AD9850 shield by Paul M0XPD and Kanga UK.  Code by AD7C.  One stage amplifier by Pete Juliano N6QW.    Useful as a VFO or a sig generator.  Thanks to all involved.
 

Note the cool translucent feet!
 
 


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5 comments:

  1. Bruce WattendorfMarch 24, 2015 at 10:18 AM

    Where do you put the Tubes?? and Analog parts?? and what are you ordering breakfast??? LOL It looks great Bill...

    ReplyDelete
  2. simonhk (G0FCU)March 24, 2015 at 12:29 PM

    I also used the code by AD7C. When I put a picture of mine on Twitter a while ago I got a comment back saying "The 'h' in Mhz should be uppercase". Factually correct I think but I can't be bothered to open up the box to re-program it.

    It's the soul in this particular machine!

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  3. AnonymousMarch 24, 2015 at 2:06 PM

    I would have responded by changing it MC/S if there is enough room on the line.

    Bill - which buffer output circuit did you choose?

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  4. AnonymousMarch 24, 2015 at 2:35 PM

    Can you please post the links for the code and buffer amp?

    Thanks
    KG4ARS

    ReplyDelete
  5. Bill MearaMarch 25, 2015 at 5:35 AM

    Richard, AD&C's code is available here. There is a version that allows for IF offset:
    http://www.ad7c.com/projects/ad9850-dds-vfo/
    Pete's output amp is here: http://soldersmoke.blogspot.com/2014/11/dds-amplifier.html

    ReplyDelete