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Evil Lair Electronics
Evil Lair Electronics
Latest Videos
EFHW Facebook groups are a dumpster fire - Part II
An efficient 40-10m EFHW antenna for portable ops
EFHW Facebook groups are a dumpster fire - Part I
Trash that FT140-43 EFHW xfmr geometry STILL matters
An EFHW antenna for 60 meters & 30 meters plus 1 more band if desired
EFHW antenna transformer - 52 mix core loss measurement
EFHW antenna - low loss QRP core
EFHW antenna tranformers - core geometry matters
EFHW antenna transformers - cumulative losses from prior 3 videos
EFHW antenna transformers - capacitor loss comparison
EFHW antenna transformers - loss difference with different winding styles
EFHW antenna transformers - bifilar vs tapped primary