Teisco Vintage CM-88 Checkmate 88 2x8 Solid State Guitar Combo AmpNotes Electronics are dirty A Teisco Vintage CM 88 Checkmate 88 2x8 Solid State Guitar Combo Amp in Good condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the pictures! Everything we sell has been tested and is fully functional