cartridge demagnetization

Shorting the MC outputs to GND as recommended by J.Carr (as demonstrated on YouTube) would yield the strongest current i.e. maximising magnetic flux, which is proportional to current.
This would produce the strongest and most "coercive" effect while keeping current at a sensible level which the coils can withstand.
That current would also be "normalised" (no DC offsets caused by connecting biased circuitry).

I know some folk are sceptical about the methodology but it seems reasonable that if the MC can magnetise the coil cores to a slight degree then it is just as capable of reversing the effect. How long and how often to achieve that result is the only remaining question. Since we are working ostensibly within the limits of the cart's operation, there seems little reason for A.J VdH to be concerned about damaging long-term effects(?)

Combining that method with e.g. the Cardas demag signal might be the ultimate "safe" deflux? It also might prove to be a fractionally quicker process than just using the shorted MC method with a normal LP?

I've not tried either method BTW but plan to test at least one of them.

I should mention for the benefit of anyone who's just tuned in to the demag argument that Lyra carts such as the Delos use a paramagnetic grade of iron for the coil formers, i.e. will "conduct" magnetism but resist storing it, so residual magnetism should be minimal anyway?

Exactly how much effect any small degree of permanent magnetism will have on Lyra carts and certain other makes of MC is a matter of debate.

I'm sure JC will correct any misinterpretations that I'm guilty of.

Thanks for the constructive comment, Intactaudio.
I was looking for a word that described the properties of "soft" material but turns out paramagnetic wasn't it ;^)
Cheers,

It's conceivable that some of our contributors, in their long careers, may have, at some point, blown up some dark matter. ;^)