I'm going to see if the Tektronix museum is interested. And if so I'm sure they can make the software available for download. As to the format, Tek decided to do it their own way. It is a funky 2 track that has issues of its own. But your method of recovering the raw track data should work as a starting point. -pete On Sun, Apr 2, 2017 at 11:16 PM, AJ Palmgren via cctalk < cctalk at classiccmp.org> wrote:

http://bitsavers.informatik.uni-stuttgart.de/pdf/tektronix/405x/070-2065-00… pages 6-37 to 6-41 The format and drive was all done in house. It was originally done on a horizontal external GPIB drive, the 4923. Tek was on of the first users of the cartridge. But for non technical reasons was the format used on the 4051 even though by then better designs had been adopted. Sadly not one of the good things that came out of Tek. But knowing the history all was not a technical decsision like in many large companies, and as usual a long story. On Mon, Apr 3, 2017 at 9:10 PM, AJ Palmgren <microtechdart at gmail.com> wrote: