The Permeability of Liminations for Magnetic Recording and Reproducing Heads

McKnight JG. The Permeability of Liminations for Magnetic Recording and Reproducing Heads. In: AES Convention 57. Audio Engineering Society; 1977. Paper 1265A. Available from: https://aes.org/publications/elibrary-page/?id=3090

@inproceedings{McKnight1977_3090,
  author = {McKnight, John G.},
  title = {{The Permeability of Liminations for Magnetic Recording and Reproducing Heads}},
  booktitle = {AES Convention 57},
  note = {Paper 1265A},
  year = {1977},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3090}
}

TY  - CPAPER
TI  - The Permeability of Liminations for Magnetic Recording and Reproducing Heads
AU  - McKnight, John G.
T2  - AES Convention 57
M1  - Paper 1265A
PY  - 1977
DA  - 1977/05/06
UR  - https://aes.org/publications/elibrary-page/?id=3090
PB  - Audio Engineering Society
LA  - en
AB  - Although catalog values or the maximum permeability of head materials such as 4-79 mo-permalloy are about 300 000 µ0., the practical values for initial permeability at 1000 Hz for thin laminations bonded together into a head core are more nearly 5000 µ0 to 10 000 µ0. The initial permeability of a toroid or a "gapless" head may be calculated from physical dimensions and an inductance bridge measurement. The Maxwell bridge with a variable capacitance works especially well.
ER  -