No. It's 3 resistors in a T or pi attenuator circuit. There are many attenuator calculators on the web (just Google) to help select the appropriate resistors for your headphone impedance and desired amount of attenuation. One attenuator is needed for each ear.
on 2009-04-05 22:14 Billy Cox said the following: > Eric, is this a simple resistor or ? > > BTW, TU for the NCJ articles on TX/RX. > > 73 de Billy, AA4NU > > -----Forwarded Message----- > >> From: Eric Scace K3NA <e...@k3na.org> >> Sent: Apr 5, 2009 9:21 PM >> To: Maarten van Rossum <pd2r.maar...@gmail.com> >> Cc: Elecraft Group <elecraft@mailman.qth.net> >> Subject: Re: [Elecraft] My K3's hissy and noisy audio >> >> I have very sensitive in-ear monitors. The K3 (and the Orion, and >> possibly other radios) has significant hiss. I inserted an attenuator >> and knocked the hiss down below my ability to detect it. There is >> plenty of audio range remaining. >> >> You may find 10 to 20 dB will help. >> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
