Bell Labs ‘Unix’ Tape from 1974 Successfully Dumped to a Tarball

Archive.org now has a page with “the raw analog waveform and the reconstructed digital tape image (analog.tap), read at the Computer History Museum’s Shustek Research Archives on 19 December 2025 by Al Kossow using a modified tape reader and analyzed with Len Shustek’s readtape tool.” A Berlin-based retrocomputing enthusiast has created a page with the contents of the tape ready for bootstrapping, “including a tar file of the filesystem,” and instructions on dumping an RK05…