From the Club 100 support files (www.club100.org)... MODEL "T" AC ADAPTOR SPECS This is the correct AC Adapter for use with a Model 100, 102, 200, the tpdd and the tpdd2, as well as the CCR-82 tape recorder. They all use the same adapter. Cat No 26-3804 - Input 120v AC 60Hz 8W - Output 6V DC 400mA This is a negative center unit. Never use a positive center unit! The plug on this unit is the same as: Cat No 274-1569A - Coaxial DC - Power Plugs (2) - 5.5mm O.D. - 2.1mm I.D. --