| 360 / | HD | DYNAMIC MAGNETIC INFORMATION STORAGE OR RETRIEVAL |
| 110 | ![]() | HEAD {13} |
| 111 | DF | .~> Flux gate |
| 112 | DF | .~> Hall effect |
| 113 | DF | .~> Magnetoresistive or magnetostrictive |
| 114 | DF | .~> Magneto-optic |
| 115 | DF | .~> Flux scanning |
| 116 | DF | .~> Cathode ray |
| 117 | DF | .~> Hand-held |
| 118 | DF | .~> Erase |
| 119 | DF | .~> Gap structure details {2} |
| 122 | DF | .~> Head surface structure |
| 123 | DF | .~> Head winding {1} |
| 125 | DF | .~> Head core {2} |
| 128 | DF | .~> Head accessory {4} |