<<<<I am trying to use a cheap computer microphone in my K3, front 8 pin connector. I have some doubts that I would like to solve before making a mistake:
1- Can I use pin 1 directly atached to the electret capsule and set bias in config:MIC SEL? Or should I use also some kind of resistor/condenser arrangement to the 8V DC pin6? 2- For GND: shoul I use pin 7, pin 8 or both pins?>>>> I just went through that. My Sennheiser headset now works fine using internal settings for bias. Pin 7 and 8 are the same connection point. I do not believe it is best that they are the same, in my unprofessional opinion one should be a shield ground and one an audio ground, but they are the same. I had to modify my audio input grounding to cure RFI. My headset has a long cord, and when I would stretch the cord I would get bad RFI with my yagi stacks pointed back at my house. Elecraft has a mod for this, but I changed more. I soldered the wire around the mic connector shell to the connector shell, and I grounded the circuit board pin 7 and 8 via a copper foil that grounds under the cabinet screw in that corner. Now I absolutely no RFI into the audio no matter what I do, and with the very long cord all stretched out like an antenna! The Elecraft mod was an improvement, but the copper foil was a total cure for me. 73 Tom ______________________________________________________________ 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
