Sharp Twin Famicom Overview and Alternative Power Supplies 

retrogamerjapan...
The Sharp Twin Famicom combines all of the Nintendo FC and Disk System goodness rolled into one console. It also uses standard AV cables, not proprietary--thanks Sharp! Like the Famicom Disk System, if you buy one used, the belt is probably broken, so get one with a new belt.
The power supplies for the Twin FC are sometimes expensive and hard to find. You can use a Sony PS1 power supply which might be easier to source. You just have to get a tip adapter (and as always, use a step-down to 100v transformer). Thanks to the excellent Famicom World forums for that nugget of info: www.famicomworl...
I really like the Twin FC. Like the AV FC, the AV cable connection is really great. You get more reliable video and audio compared to the rf connectors on the original red and white Famicom.