Thanks to all of you for taking the time to respond. I will keep my eye out for an adapter with the correct voltage and polarity. I just had the RP200 lonely for an adapter that took 3vDC. I happened to have the two adapters mentioned that I scavanged off something (can't even remember!),so I think I will junk them. Thanks again, this is good information to keep on file. DennisD.


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