Nice large loading coil on epay, number 12 wire.. http://www.ebay.com/itm/Commercial-AM-Broadcast-Inductor-687uH-12Ga-Wire-For-Transmitter-Amplifier-Tuner-/141918785394?hash=item210b04cf72:g:-HYAAOSwZ8ZW10VG Not mine just for info 73 Merv WH2XCR