Hi Neil: I don't have the 9636T but I do have the 9630P and the AC Adaptor specs are as follows: Model - MKD-4824550 24 VDC 550mA Perhaps you will feel it is likely the adaptor would not have changed. Good luck! ROD [log in to unmask] The NOSPIN Group Promotions is now offering special "Free-After-Rebate" Software specials in conjunction with Beyond.com. We have new offers all the time!!! http://nospin.com/promotions