Peavey Electronics EQ-27 by Victorian Needle
You can find a slew of these on eBay or antique stores. I bought mine for about 15 dollars at an antique store. They are fairly common as they were mass produced. Mine is from 1978 and everything was in perfect working condition. Sound quality is actually quite smooth for being so old. If you can find one in working condition it's highly usable and great quality. I used it as a bus EQ, and have even ran it through every track on a mix for warmth. You don't have to break the bank for analog warmth. Just find a good piece of vintage hardware.