Let's Keep It Simple - Adjusting the Novice Antenna, September 1953 QST - RF Cafe
Snap On End Fed Feed Line Choke for Non-Resonant and End Fed Half Wave Antennas, RG8X, RG8, up to 38 dB common mode suppression - End Fed Long Wire Antennas - Palomar Engineers®
Link End Fed Half Wave Antenna and Tuner for SOTA | Get out of the Radio Shack and Live Life
ENDFED/EFHW Antenna & Choke – F5NPV – V85NPV
Ham Radio - An end fed half wave antenna with built in counterpoise. (Experimental) - YouTube
G0KYA's Amateur Radio Blog: A shortened multi-band End-Fed Half Wave (EFHW) antenna for 80-10m