Trainer Series PB-204 Electronic Trainers Powered Breadboard Specifications Optional Accessories Model PB-204 Input power Source Power Supplies Binding Posts Breadboards Weight Dimensions AC Line: 110/120VAC @ 60Hz, or 210-220VAC @ 50Hz Fixed DC: +5V +/-0.2VDC, 1.0A max, current limited Load Regulation better than 0.8% +/- 0.02%/°C Ripple, <4mVp-p @1A Fixed DC: +12VDC, 0.5A max@ +12VDC Load Regulation better than 1% +/- 0.04%/°C, Ripple less that 10mVp-p @ 0.5A Fixed DC: -12VDC, 0.