scored a tft cheaply, but with a catch
 

It's a Compaq TFT 1501, and I don't have the powersupply:(
I can read the voltage and ampage on the backside of the screen, but
it doesn't say anything about the poliraziation of the plug (it's a simple round plug but I don't know wheather it's positive or negative in the middle.

Does anyone here have a powerbrick for a compaq tft (guess they are all pretty much the same) where you can se the polarizaiton?

Best Regards,
Chris