Eliptical, round, and OOR describe the overall coil housing envelope but the individual (internal) coil windings can be different. Does that impact the performance? For example, the 8"x9" stock coil on the Tesoro Deltas has a quite small centrally located receive coil (I think...).

DD searchcoils tend to have the same size and shape T & R windings (although not necessarily the same number of windings in each). That may be for the purpose of symmetry weight balance (and/or other reasons), though. But concentrics can possess left-right and toe-heel symmetry while still having quite different individual shapes for their windings.



Edited 1 time(s). Last edit at 04/10/2022 10:09AM by GB_Amateur. (view changes)