I see quite a few of the CTC 175 to 187 models out in the trash, If they are the 27" to 32" stereo variety I pick them up! Once the ground connections are soldered, And on occasion, An Eprom replaced, Those sets work great! Great picture quality and quite reliable once repaired. I have sold a few on ebay with good results. With the money I make from those, I can then buy my vintage goodies!