Absolutely the wrong kind of demagnetization. With a cartridge, a strong "electrical" signal is sent through the coils of a moving coil cartridge to demagnetize certain iron parts of the cartridge which should not be magnetized.
A bulk demagetizer used on tapes creates a powerful magnetic field. If it has any effect at all, it would be to demagnetize the permanent magnets in the cartridge, a VERY BAD idea.
A bulk demagetizer used on tapes creates a powerful magnetic field. If it has any effect at all, it would be to demagnetize the permanent magnets in the cartridge, a VERY BAD idea.