On Sun, 15 Oct 2000, ajp166 wrote: I don't think so. I recall the TEC as being the drive with the "slide switch" on the front (mechanical latch for the door?) I DON'T think that it used a Shugart style positioner. That's part of why I expressed the possibility that the label was NOT correct for the drive. BTW, the mod to SA400s for 40 track was >20 years ago. Almost everybody went to MPI, Tandon, etc. drives instead as soon as those were available. It was even hard to sell an SA400 at VCF! ($4.00) The TEC (or Tandon or Shugart) drive can also be tested in a PC. But Radio Shack jumpered ALL of the drive selects "ON", whereas IBM jumpered every drive as if it were the second drive. So, to use a RS drive in a PC, you would need to interrupt the signals on pins 10 and 14. On Tandons and the like, that was a jumper block. On the TEC, it might require cutting traces (readily accessible in a group). When formatting in a PC, specify "/1", since you can only format single sided. -- Grumpy Ol' Fred cisin(a)xenosoft.com