looking for help finding correct power supply

im looking to locate a new ac/dc power supply as the one i have is broken. i have verified this with a dmm.
i wanna say the OD of plug it 2.1mm, but i cant seem to find anything that size without a 5mm attached to it.

heres a pic f dc jack vs a micro usb for size reference:

EDIT: the device is my grandmas tablet, and requires 5vdc @ 1.5A max - center is pos

thanks!

Looks similar to the thin nokia charger, but maybe a bit shorter.

OHH! You are a genius!! i just found an OLD samsung flip phone scouring through my old parts box that looks like it may be the correct plug!!

some hacking and soldering and i may be in business! i completely forgot about this old phone. i think i bought in 2000??