On 14 Jan, 2008, at 19:11, cctalk-request at classiccmp.org wrote: What continent is it on? Is it half inch tape, one inch or quarter inch? Any idea how many tracks? Someone said it was 61-63, well half inch drives then had ten tracks, later seven tracks and later still nine tracks. Some analogue recorders had even more tracks. Roger Holmes Owner of a dozen Ampex TM4 ten track drives.