I recently posted an account of the installation of a 7 track head to a 9 track tape drive, allowing the magnetic flux reversals to be recorded by a logic analyzer and converted to tape contents by software postprocessing. Because I took no pictures during the work, the prior entry was pure text. A reader has asked for pictures (for the work in question and also for future posts).
|Dual 9 and 7 track head (7 tracks on left)|
|Rubber wrapped cables from new head, plus existing wires from drive to its old head connectors|
|Anchor board during wiring, to adapt existing head connector to the new head's cable|
|Read board in the Qualstar drive, with 9 identical columns of electronics|
|Qualstar drive moving tape across head while we examine the signal from the head|
|Example of our pairwise tests with paper shim between head and tape, top channel declined first in this test|