Yep measuring a pickup s dc resistance will not tell you if the magnets are alnico or ceramic.
Do lace pickups have ceramic magnets across the back.
I love vintage a2 a3 a5 magnet pickups.
A guitar pickup s magnet or magnets provide s the power that enables it to do its thing by sensing the movement of the guitar s steel strings when you play.
These have a very crisp high end and remain clear even with heavy distortion.
These pickups are rare.
They tend toward a response with less low end and a strong upper midrange.
They are composed of iron oxide and strontium carbonate.
Different types of guitar pickups use different numbers of magnets usually one two or six depending on their design.
If just one or two magnets are used.
If you are a skilled designer of pickups looking to create the best sound from your instrument you have a choice between alnico and ceramic magnets when it comes to magnetic guitar pickups.
Some of my favorite pickups have ceramic magnets i like not love the sound of mim ceramic single coils they sound really stratty the 80 s mij low output ceramic pickups almost sound more vintage to me than real vintage pickups.
They can also exert more string pull.
I love humbuckers too same deal.
While their hard brittle quality and low energy exclude them from some applications ceramic magnets have won wide acceptance due to their corrosion and demagnetization.
It s a neck pickup but i once fitted it into an old shaftesbury les paul at the neck position and it sounded nice.
I bought a pair of the warman humbucker sized p90 pickups with ceramic pickups and i find them too harsh in both neck and bridge positions.
What is a ceramic magnet ceramic magnets also known as ferrite magnets were developed in the 1960 s as a low cost alternative to metallic magnets.
With windings like for like the ceramic will usually have a thicker less stratty sound with a chunkier midrange and less definition.
These are even stronger than alnico.
Alnico is a family of iron alloys which in addition to iron are composed primarily of aluminium al nickel ni and cobalt co hence acronym al ni co they also include copper and sometimes titanium alnico alloys are ferromagnetic and are used to make permanent magnets before the development of rare earth magnets in the 1970s they were the strongest type of permanent magnet.
The ceramic pickup non magnetic poles plus bar magnet has a different tone from the classic alnico.