Which leads me to re-iterate that, taking all the working time for debugging into account, and especially if you haven’t a well equipped electronics lab at home, it is much cheaper to order a readily built and tested open.theremin shield.
Having access to an oscilloscope is essential for debugging such mixed signal circuits.
Thank you both - very helpful. I do not have an oscilloscope but have a friend who has one. I will arrange to borrow it and see what I can see.
I certainly could purchase a theremin as it is within my means to do so, but I like building things and learning about circuits as I go along. Heck, this might even be a good reason to pick up an oscilloscope of my own (something that has been on the list for a while). Let me tinker a bit and I will report back when I get it figured out.
Thanks
I was directed to the problem by Urs and the problem, not surprisingly, was ME! The kit I got was missing the little lock washers so the antennae tended to come loose and swing around. I had also (improperly according to the directions) installed them on top of the shield. Being a moron, I figured that I would just drop a blob of solder to try to keep them from moving about. Urs spotted this in an image I sent him and inquired about the blob. I got my solder wick out and removed it and it now works.
I am super appreciative of your help with this matter - thanks! Now I just need to learn how to do some basics and then figure out how to keep my dogs from going nuts when I play it.
Tom
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