Unusual Coil For White's TDI F.s. On Ebay

[GB_Amateur]

Not trying to clog up the forum with ebay item(s), but this looks like a hard-to-find item someone here might want:

ebay.com/itm/18-Cannon-Coil-For-Whites-TDI-Metal-Detector-/2

Never seen one of these myself and have never heard of this company (if 'Cannon' is actually a company name -- maybe it's not).  Says 17 microsecond or longer delay is recommended, which takes it out of my wheelhouse since my TDI/SPP is locked at 10 us.

[Dirty Nickels]

Coils were made by hand by Lamar Cannon. Coil is very light despite its size. Made for TDI and SL with variable delay.

[Ridge Runner]

Never seen or heard but interesting.

Chuck

[Daniel Tn]

They were popular at the Diggin in Virginia hunts back several years ago; kind of like a domino effect. When one person saw somebody else with one, they all wanted one. They are surprisingly very light weight...not just for the size either. I mean light weight as a whole.  But they weren't that great of a coil either.  Other coils are far better.  When people figured it out, you couldn't really give them away. Thus that coil on eBay and why it has been on there for so long. The seller keeps listing and relisting it.