IBM 727 Manual Of Instruction page 105

Back Plate
• Heads
i«r
FIG U RE 16a. TO P V IEW O F REA D IN G HEAD
SH O W IN G HEAD SKEW (M ECHANICAL)
FIG U RE 16b. TO P V IEW O F REA D IN G HEAD
SH O W IN G POOR HEAD A LIG N M E N T
Back Plate
Tape
FIG U RE 16c. TO P V IEW O F REA D IN G HEAD
SH O W IN G POOR TAPE A LIG N M E N T