In this video I will tell you about my observations when using Amidon ring magnetic cores in End-Fed Half Wave antennas
Necessary parts:
Ring Ft-240-43: https://alii.pub/724cp7?erid=2SDnjcPVCg3
Ring Ft-140-43: https://alii.pub/724com?erid=2SDnjc2jNjD
Ring T-200-2: https://alii.pub/724ccd?erid=2SDnjeP7Zh5