Some questions about Dynasonics

[Mark Hammer]

1) Do the polepiece height-adjusting screws, the bracket they connect to, or the springs, conduct the magnetic field, or do they play any sort of role in the coil's inductance? Or are they simply "there"?

2) Assuming they do not conduct the magnetic field, does this mean the coil is close to the polepiece on one side of the polepiece, but at a distance on the other?

3) If the coil is, technically, offset from the polepiece, what is the general effect of situating coils around a magnet in asymmetric fashion (assuming that one can even talk about "general effects" in this context)?

[Peter Naglitsch]

All this is "AFAIK" so beware...
1, The brackets are brass on the pickups I have seen (modern versions) but the screws and springs migh very well conduct the magnetic field. I didn't had a good Gauss level meter back when I had the oportunity to examine a vintage unit so I wasn't able to measure if the magnetic field was different right above the screw head or not (indicating that the screw conducts the magnetic field).

2, Yes

3, I might say "tone"... It will probably be one of the factors that make Dynasonics sound the way they do.

I have made my own interpetration of those pickups (using wood for the body/bobbin before getting them cut with a laser) and those sound very different from any other pickup and quite close to the best Dynasonics I have heard. I made my brackets from aluminium and the screws and springs do conduct the magnetic field, but the gauss level is no were close to that above the magnets, so if it have any inpact on teh sound (the field above the screws) my guess is that it is minor