Piper_chuck related a recent incident that he had where he purchased a used radio. He sent it in for a tune up and found that they previous user had changed the crystal without having the radio retuned. The shop reported to Chuck that the radio was working 50% below normal output from the crystal change. The radio was only putting out half of the power it was supposed to. Now do you want to be flying a radio with your radio working at 50%???

Ken