NEW custom built TRIPLE CORE HIGH POWER 64-1 EFHW (End Fed Half Wave) multi band (160/80/40/20 meter) antenna matching transformer.  Maximum Power 1500 watts.  Optimized for half wave long wire with 64-1 Impedance match. (Primary 2 turns, Secondary 16 turns).  Constructed with THREE 43 mix toroids and wound with 14 gauge Solid Copper Magnet Wire.  All Stainless Steel hardware.  Case vented to remove any condensation and heat.  Antenna wire NOT included.  Just add ~260 ft. of wire  for 160 meters (~130 ft. for 80 meters).  Recommend 14 AWG insulated wire. Home Depot Southwire 500 ft roll 14 gauge Black Stranded CU THHN wire ) hung as an inverted L, inverted V, etc., and trim for minimum SWR on your desired portion of the 160 meter or 80 meter band and you will have a multi-band antenna that performs well on 160 meter, 80 meter,  40 meter and 20 meter bands.  I have two of these identical transformers in use with inverted L antenna wires.   I routinely talk with stations in Europe with 500 watts.  Shipped with USPS Priority Mail.

DIRECTIONS FOR USE:  Connect ~260 feet  for 160 meters (or ~130 feet for 80 meters) of 14 gauge insulated wire in inverted L or inverted V configuration.  Connect Ground terminal on transformer to Ground Rod (ideally 8 foot ground rod approximately 8 feet below transformer with heavy duty ground wire.  Connect 50 ohm coax (recommend high quality low loss cable, eg. RG 213, DXE 400 max, LMR400, or equivalent) to transformer and shack output (ie….transceiver/amplifier/tuner 50 ohm output).  Using your antenna analyzer trim far end length to achieve SWR minimum at desired frequency or 1.850 Mhz (or 3.7 Mhz for 80 meters).