Replacement for Sprinkler Controller Power Adapter?

Old thread, but my power adapter just quit working on a sprinkler controller that is 1.5 years old, really not even 2 seasons old yet. Contacted customer service, and because it’s out of warranty, they’re telling me I have to purchase an entirely new controller just to get the power adapter. I’m willing to purchase another adapter, but think it’s a bit rediculous that the only solution to this is to throw out a perfectly good controller. (I know it’s good because I have two controllers, and the one good adapter will run either controller.) Looking for an alternative adapter, and I’ll post up if I find one.