Antenna building #2 - EFHW Antenna - figuring out the right core size
21:41
Antenna building #1 - EFHW Antenna - theory and practice of the broadband transformer
12:14
How to wind an End Fed Half Wave Autotransformer
18:19
EFHW transformer re-visited: improved core material & easier efficiency measurement
12:05
Which end fed half wave transformer should you use for running high power? #hamradio #antenna
12:24
How to Tune a 40M EFHW if 20, 15 and 10. DO THIS on a 1934-1079-ND Toroid!
19:37
Experimenting With The EFHW-8010 Antenna - Can it get better ?
6:48
Can The Best 100w End Fed Half Wave Get Any Better?
19:45