Pip said:poctop said:Pip said:So finished the build and all powered up fine. Mic sounds great I think? What I mean is I have never really used a U67 before so have no comparison. My build is Beezkneez K6 capsule and Poctop PSU Board.
Here is the one thing I am not sure of. When I plug the mic into my preamp with the power off I get a buzz, nothing new for a tube mic, low but its there. then I power the mic on and all seems fine. The ouput is a little low but nothing crazy. I am basing this on other mics in my possession and where the gain of my pre is. But when I kick in the pad the volume drops, a lot if you ask me. The mic still works fine in all patterns etc... But the buzz is now louder or I should say less masked. What might be wrong.
I have triple checked my grounding while listening to the mic all is as quiet as I can get it. I have quadruple checked my wiring. All my voltages are spot on and I have tried multiple tubes. Again the mic sounds fine but I really think I might have a problem. Is it possible C10 is hosed somehow?
Hi Pip , For the psu parts i am glad everything is right on , i have implemented a SHLF jumper to gnd lift the cable shield
you can try to remove it as it is on by definition ,
Thanks but I will try it but I don't think thats it. Alas I see a long trouble shooting session in my future. All components seem to check out in circuit next I will start to deconstruct and check all solder joints etc...
Sorry to quote myself but it seemed the easiest way to keep this a thread.
So all is good. It turns out that my test mic pre had developed a problem. Argh! I guess its always good to test your test kit eh?! Don't know what it is yet but switched to another of the same units as I own two and bingo problem gone. I also want to stress that I made double sure that the body sleeve was on correctly and that it was tight and making good contact. This mic was very agitated by close proximity to my soldering station!
Beesneez K6 sounds awesome! But I wonder if Chunger will make those Delrin spacers available as I need one too?