hello there : )
ive set up this little pre-amp circuit, and it seems to work o.k. i am using a 5v regualated supply.
what i have connected to the input is cheap mic capsule from a cheap headset. i beleive the mic is an electret mic. the amp is not distorting as i replaced the 1k (R2) in the diagram to a 4.7k and that has helped allot. ( i am hoping that is the best place to attenuate the the level, before it goes into the amp? i could place a variable there perhaps?)
ive looked around and most descriptions of these electret mics say they need 2v or more.
i have measured the voltage +- at the mic it is just under 5v so that should be o.k.
i wonder, is there anything i can do to tune ths a little better? i thought to replace the mic capsule in the headset with a panasonic WM-55A103.
any ideas would be cool : )
ive set up this little pre-amp circuit, and it seems to work o.k. i am using a 5v regualated supply.
what i have connected to the input is cheap mic capsule from a cheap headset. i beleive the mic is an electret mic. the amp is not distorting as i replaced the 1k (R2) in the diagram to a 4.7k and that has helped allot. ( i am hoping that is the best place to attenuate the the level, before it goes into the amp? i could place a variable there perhaps?)
ive looked around and most descriptions of these electret mics say they need 2v or more.
i have measured the voltage +- at the mic it is just under 5v so that should be o.k.
i wonder, is there anything i can do to tune ths a little better? i thought to replace the mic capsule in the headset with a panasonic WM-55A103.
any ideas would be cool : )
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