Sony Walkman bundle (for parts or repair)

Bundle of Sony walkmans for parts or repair. 3 are cassette players, 1 is just radio. I was able to power on the Sony mega bass (photo on left bottom) radio was static but I don’t have a cassette to test. The yellow Sony sports was showing clock on front but could not get radio to work. The other 2 on the right would not power on. There was old batteries in all of them that I removed and some corrosion. Please view pics and comment with any questions. faultless for everyday use. first-class materials and excellent craftsmanship ensure long-lasting durability.