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I found the problem and next time I will no better; and I should have this time. It was the dynamike control pot. All that work and finally it was something so simple that I should have looked at right after the mic plug connection; but I didn't and now I have learned something invaluable. Check the most obvious causes of no modulation-1. bad mic, 2. bad mic plug at radio or loose wire, 3. the control pot for the mic gain. So stupid after all this work, but it is fixed and I had no money into it. I got this for free and all the parts I threw at it were all extra parts. Thanks for all the help.