"Ugly" of "Coax" Baluns - John Portune W6NBC - September 2021
26:13
Build you own 4:1 BALUN with coax (045)
46:32
10M Moxon Antenna John Portune W6NBC NCDXC March 2022
46:51
W6SD Bob Brehm AK6R on End Fed Antennas - August 20, 2021
33:04
nanoVNA - Measuring Antenna & Coax Characteristics (Revised Feb 16, 2024)
39:22
Building an easy copper tape and PVC vertical antennas with John Portune, W6NBC
40:08
In Search of an Optimum Mag Loop (John Portune)
50:19
O computador MAIS quebrado? O Sinclair Spectrum+2 de 1986
49:02