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Re: EM264Y Mic Amp Noise


 

¿ªÔÆÌåÓý

Hi Yoshimi,

Welcome to the group!

Do you have a schematic you could share?

Thanks,
-Scott

On 7/23/23 17:41, yoshimi.mifi@... wrote:

Heyo there dear MicBuilders,

Im new in the microphone build area and having some problems with the circuit im working on. Im trying to build a low noise balanced Cardiod mic with the Primo EM264Y. My Prof. at the University helped me on the making of the circuit, but after i built it, I noticed it is much noisier than expected, comparred to the EM264Y Data sheet.
Im not sure what is causing this noise. I already tryied cleaning the board, grounding the build and using Metal film resistors.

Here are the two versions of the circuit and the builds. J1 & R8 simulates the EM264Y Capsule.

Any suggestion would be very appreciated :)

Greetings

Yoshimi

Version A

?

Version B


-- 
---- Scott Helmke ---- scott@... ---- (734) 604-9340 ----
"I have ceased distinguishing between the religious and the secular,
for everything is holy"  - Joe Henry

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