A question about AC Adapters for monitors

I have a 7 year old monitor from Princeton Digital that is no longer sold in stores. The AC adapter is now having serious problems because it no longer powers the monitor.

Here are the specifications of the AC adapter:
AC INPUT: 100-240V ~ 1.8A
DC OUTPUT: 12V - 4.0A

I tried to contact the manufacturer of the adapter and they're out of business as well.

Are AC adapters universal for monitors like the USB cables? I want to purchase a replacement AC adapter on the internet or in the stores without buying a completely new monitor.

Thanks

If the adapter has:
* Output 12VDC at 4A or more
* Has same connector
* Has same polarity, i.e. + and - are same
then you should be OK.

Try a Google search for "Princeton monitor ac adapter". I did a quick search and found a lot of hits.