Electret Mic On CRT SS 6900 

Hello Ken , Thank you for sharing , unfortunately the CRT 6900N has a different menu system to the DX 6000 Powerline & from what I can gather the CRT 6900N does not have Electret option facilities , just dynamic .

Great work.. shame i haven't come across a similar hack for the SS 6900N😊

It is amazing that one radio can handle both types of microphones. Good health :)

Ken, thanks a lot for this! I got an extra president mic for mine (dynamic, not electret) but I find that the tiny CRT M6 mic sounds fuller and more bassy and the President thinner. I haven’t tried removing the 4th pin some people advise. I have one issue with the CW, I wonder if you can advise: if I start keying dots … … … the very first dot is omitted, all the rest are good. Then if I stop for one second and restart again the very first dot is omitted. As if some mechanical relay kicks in slowly, stays stuck then unsticks after a second of inactivity and it has to slowly stick in again, omitting the first dot in this process. Very annoying..

Hi Ken very interesting, can you give out the microphone pin out for the microphone ie what is tx ,audio, common, up down ,thx Tim.

Thanks Ken

Thanks Ken