Base station power supply for BT wireless telephone system BT 1100, 1500 etc. Model IW506U1, 039956 Removed from a working system Input - 100-240V acOutput - 6V dc, 500ma Could of course be used for other applications with suitable plug. I have two of these available. NOTE - There are 2 versions of this power supply, one version wired to pins 2 & 5 as per this unit and one wired 3 & 4. Ensure you purchase the correct one!
