A peak limiter combined with a fast short or open circuit is the only way to prevent ear damage. I've listened to earphones "protected" by vdr and, although the peak voltage delivered to the headset is limited, the waveform simply flattens off and the audio power pulse is still deafening.
This problem I think is addressed by telecom users eg in call centres and has been around a loooong time. One of these days I'll make a little outboard suppressor to use with my headphones where-ever I take them. David G3UNA > If I may chime in here, I hope very strongly that nobody is using deep- > in-the-ear type earbuds with the K3 or any other radio. TO DO SO > MIGHT RUIN YOUR EARS. > > > 73, > Oliver Johns > W6ODJ > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
