UpBright [UL Listed] 9V AC Adapter Compatible with Alesis P3 Micron SR16 HR16 M-EQ MEQ-230 D4 DM4 DM5 DM8 RP 100 200 250 P3X110 MPX-100 7-40-0903 A30910C A30980C U090085A AC-9 A9100UL-950 9VAC Power

okay i thought i'd modify my power supply uh so it was originally a four to five and a half volt power supply at eight amps it has this nice giant transformer in here and uh it used a uh i used a circuit like this uh let's see if you can i can zoom in there there we go so it used a circuit like this and it generated minus 13 volts and um so i've modified it with a circuit like this and i put it in a full wave red fire and that will give me plus minus 13. and i had a lot of capacitors already left over in there so i replaced the two diodes with the bridge and then i reused the capacitors that were already there so so let me show you that um yeah i think you can just barely see it there's a a bridge a ridge rectifier in here now there used to be two uh two giant diodes in there so it took those output in the bridge and uh these two capacitors that used to actually be three capacitors all