Originally Posted by
Tea24
What is/was the "free field" principle?
I think the "Free Field" term eventually became known as "Induced Magnet." Instead of a (then) comparatively heavy permanent magnet being hauled around by the stylus/cantilever behind the hinge point, the little tube behind the cantilever was a "magnetisable material," a magnet being mounted in the cartidge body above - in these Goldrings and ADC's at any rate. IIRC, current Ortofon "MM" types are also induced magnet, but the magnet is a tiny ring around the cantilever at the hinge point - I think.....
Currently getting re-acquainted with a Grado F1+ from the late 70's. Big, ballsy, good tracking and not over-refined like I remember the current Gold being, it's great and loves the massive Lab 80 tonearm 
I can't go on and I can't go back, I don't feel so matter of fact,
I tried and tried to make good sense, What's the good to try it all again?
Reply With Quote
