#bitx20help #bitx20help


I need some help trouble shooting bitx 20 ver 3b mixer stage. The VFO p-p is 125mv (In fact I had to add a capacitor to the frequency counter for it to work)) Q7 dc voltage is per the manual , when I scope Q7 output after connecting the mixer I get 4.1V sinus clipped at the top by the 12V power supply . I attach a picture of the scope. Any advise ? I forgot to mention that this is unbuilt kit and I just got to the mixer stage per the manual.

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