i just picked up the following NOS tube chart rolls: 1)Model 533A-600A 605A Tube Testers, Code No. 3200-95, 10/1/66 2)Modle 533A-600A 605A Tube Testers, Code No. 3200-178, Fall '68 i believe these fit the 6000/6000A/6005 tube testers, can someone verify? tnx, barry carson city, nv http://home.att.net/~btuttleman2/electron.html