Dan Koellen AI6XG5 days ago7 minBig Font Clock Update: Dimmer-Interface PCB and Setup Instructions.A prior post described the development and build of a clock to display time and date for UTC and Local. The clock characters are large, ...
Dan Koellen AI6XGJun 63 minEnd Fed Half Wave Antennas: More About the Primary CapacitorI recently posted a blog claiming that a capacitor in the primary of the matching transformer is not needed for end fed half wave (EFHW) ...
Dan Koellen AI6XGMay 273 minEnd Fed Half Wave Antennas: Is a Primary Capacitor Really Needed?In my research on End Fed Half Wave (EFHW) antennas I found that nearly all have a capacitor in the primary (rig) side of the transformer...
Dan Koellen AI6XGFeb 99 minBig Font Clock - Relieve for Old EyesRecently the Maker Space that I frequent received a number of 4 line 40 character (4 x 40) LCD displays. They asked me to figure out how...