Tape head - Wikipedia
TUTORIAL The Tape Loop Gap // tips, tricks, and ideas for using four track tape recorders
How to remove/cover erase head : r/tapeloops
styles.redditmedia.com/t5_olf41/styles/communityIc
Popular Electronics
I cut up a can in an attempt to make a erase head blocker. Appears to work, will be interested to see how it holds up or if it damages tape or
AudioTechnology Issue 82 by Alchemedia Publishing - Issuu
Analog taperecorders used as musical instruments Godfried-Willem Raes
Stereophile - November 2015
Synth Hacker: Portastudio - Defeating the Erase Head