Hello, John -
Fixya.com, where you posted your question, is a website intended for asking and answering questions on how to go about REPAIRING THINGS.
Those of us who answer for Fixya are volunteers and are not sitting around twiddling our thumbs waiting to answer questions, like those at call centers with "operators waiting."
I suspect you could have found websites and bricks and mortar stores in the area where you reside by using your favorite search engine (Google, Bing, Yahoo, DuckDuckGo, etc.) and the following search phrase, using quotation marks as shown:
"JOD-48U-42"
With the Google search I ran, I found the adapter you seek sold through eBay:
https://www.ebay.com/itm/222635749642
It does not seem that the AC adapter you need is currently manufactured, so you will probably have to settle for a pre-owned / refurbished one.
I have no idea if you reside in the USA or not.
Best wishes.
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