f Trainer Series PB-203A Electronic Trainers Powered Breadboard Specifications Optional Accessories Model PB-203A Input power Source Power Supplies Binding Posts Breadboards Weight Dimensions AC Line: 110/120VAC @ 60Hz, or 210-220VAC @ 50Hz Fixed: +5V +/-0.2VDC, 1.0A max, current limited Load Regulation better than 0.8% +/- 0.02%/°C Ripple, <4mVp-p @1A Variable DC: Factory Set to +15VDC, with internal adjustment +5.5 to 18VDC, 0.5A max@ +15VDC Load Regulation better than 1% +/- 0.