Changes

[[File:EM_tracker_classic_coil_trio.jpg|thumb|A classic coil trio used as transmitter or receiver. The three coils are wound on a black plastic cube about one centimeter on a side.]]

[[File:EM_tracker_classic_coil_trio.jpg|thumb|A classic coil trio used as transmitter or receiver. The three coils are wound on a black plastic cube about one centimeter on a side.]]

* [[http://rose.eu.org/2014/tag/plume Scroll down to see photo of hand-building a transmitter coil trio.]]

* [[https://web.archive.org/web/20141012064605if_/http://rose.eu.org:80/2014/tag/plume PLUME project - Scroll down to see photo of hand-building a transmitter coil trio.]]

* [[Media:Dry_elphel_model_1_rcvr_coils.jpg]] Photo of crude handmade receiver coil trio using [[http://www.sonion.com Sonion]] T 20 AG telecoils. Each coil is ten millimeters long.

* [[Media:Dry_elphel_model_1_rcvr_coils.jpg]] Photo of crude handmade receiver coil trio using [[http://www.sonion.com Sonion]] T 20 AG telecoils. Each coil is ten millimeters long.