I strongly recommend the NAD 4020 in any of it's guises. It came as 4020, 4020A and 4020B as the years progressed. They are all essentially the same.
It's an old tuner at 30+ years old and it's a very simple and basic design. No digital presets or RDS, but it is very reliable, easy to use and sounds incredibly good!
I paid £40 for one with it's original box and instructions in very good condition including postage on eBay last year and I love it! Very retro, and functional.
There is usually a good selection of these on the second hand market and they are always fully working from what I've seen. I doubt you'd find a better sounding hifi tuner for such little cost.
If ease of use, simplicity and great sound are your priorities, it's perfect.