› Forums › Radionics › built a auto speaker muting circuit for radio broadcast › Re: built a auto speaker muting circuit for radio broadcast
May 11, 2012 at 6:57 pm
#1253060
now updated using a relay to switch LED’s when the mic is live (even found a red fresnel lens for these from a old bike light what fell apart when I went over on some leftover railway tracks by the dockside and landed in a cold mud puddle)