Don, Thanks very much for your response. I made the mistake of sending my email in MIME format. I'm impressed that you were able to intuit my question from the subject! The DigiRig schematic shows a blocking capacitor of 10 uF, so it looks like I'm OK
My original email body was: "’I'd like to connect a sound card output to a K2 mic connection. I’m using a Digirig Mobile, their support page, https://forum.digirig.net/t/cables-for-elecraft-k2/1147 , suggests connecting it to the mic connection pin 1. My K2 has a 5.6K resistor between pins 1 and 6 (as I understand it, required for my MD-2 mic). Does this bias resistor need to be removed when I connect the sound card output?" Jim-VE1KM On Sun, Apr 2, 2023 at 9:13 PM W3FPR <[email protected]> wrote: > > Jim, > > If I understand your question in the subject line (but no text to detail > your question) - then the answer is that it all depends on the > soundcard. If it has a DC blocking capacitor in the input, then all is > well with the bias resistor in place. If there is no DC blocking at the > soundcard, the the bias resistor will have to be removed or a special > cable with a DC blocking capacitor will have to be inserted between the > mic input and the soundcard AF input. A capacitor of 1 to 5 uF should > do fine. > > If this does not answer your question, the respond with more text > instead of us trying to guess from just a subject line. > > 73, > Don W3FPR > > On 4/2/2023 6:31 PM, Jim Campbell wrote: > > ______________________________________________________________ > > 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 > > Message delivered to [email protected] > ______________________________________________________________ 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 Message delivered to [email protected]
