It will sound great if you add a J310 or similar JFET source follower. Very flat clean response.
A source follower is very simple. Use a low voltage .01 uF or .05 uF disc cap to the gate. Use a 100k to 1 meg ohm resistor from gate to ground. Put a 560 ohm source resistor to ground, and couple the source to the K3 through a .47 uF cap. The drain is bypassed and decoupled to a 9 volt battery or clean 12 volt supply. If you have a lot of RF you might need to decouple the audio output line. The size of the gate resistor will control loading on the D104 and the frequency response. The higher the resistance the more the low frequency response. Until I started using a Sennheiser computer headset I used a D104 head on all my rigs. 73 Tom ----- Original Message ----- From: "Chris Hembree" <[email protected]> To: <[email protected]> Sent: Friday, July 09, 2010 7:11 PM Subject: [Elecraft] D104 mic > Anyone ever use a D-104 (non amp) on a K3. How does it sound? > Chris W7CTH > > > > > ______________________________________________________________ > 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 ______________________________________________________________ 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
