F-75 And T2 - New Lightweight 15” Coil

[PimentoUK]

Seeing as the 'Bi-Axial' shape of the stock 11"x7" coil was considered a 'good thing' , and was presumably what the machine was designed for, it always baffled me why the big coil was round in shape. Surely a 18" x 12" or whatever, resembling a scaled-up stock coil would be best ?
( I did wonder if the 5" coil may be internally a bi-axial, but NASA-Tom D stated it was as it appeared - circular inside and out. Perhaps it doesn't matter so much on such a small coil ? )

[Steve Herschbach]

12 hours ago, RickUK said:

The original 15'' was possibly the worst coil that i have ever used,only used it for maybe a few hours and still in pristine condition,once again could not see any advantage depth wise but ground coverage was of course its biggest advantage in theory.

But the killer and massive design flaw for this coil was its humongous weight and for no real advantage

Exactly my thoughts on the original coil... I could not get rid of it quick enough.