https://en.scqxdz.cn/product_detail/12.html
WX111 wx030 Single-turn wire wound potentiometer 3W adjustable resistor 1K 2.2K 4.7K 5.1K 10K WX111 winding potentiometer, power: 3W/5w product resistance: 1 ~...
single turnwirewoundpotentiometeradjustable
https://www.qsl.net/d/dl4yhf/vlf_rdf/vlf_single_turn_loop.htm
Compact Antenna for a VLF Radio Direction Finder
single turnair corevlfloop
https://www.endswasteandbioenergy.com/article/1941194/government-makes-u-turn-single-rate-landfill-tax-budget
Read Government makes U-turn on single rate for landfill tax in Budget and other waste-to-energy news & info on ENDS Waste & Bioenergy
u turnlandfill taxgovernmentmakessingle