"Speaking of experience huh? Ouch!!! Kind of expensive. Mike>WE0H Subject: Re: [Lowfer] The Watering Hole Last Night. >Or you can do what I just did at 1 PM: >Applied 12 volts to a 5 volt DDS chip. >> 2. What an idiot! Yes, the proper technique for burning out a DDS chip is to reverse the 5 volt supply. Lyle" The ouch comes when you put your thumb on the thing with reverse voltage supplied! Ed