Robert Venables from Yelverton, Devon United Kingdom
This kit comprises 2 x TBOH01 5 uH LISNs, a TBLM01 LISN Mate (combines two LISN outputs into common-mode and differential signals), 50 ohm termination and coax leads. All nicely built and documented (on-line). Far better option than trying to build your own LISNs. Excellent service from Telonics.