Re: Condenser Mic Question


"GregS"
"Phil Allison"
"Spin"

have a broken Marshall MXL USB mic which isn't worth getting repaired.
The
mic element is 32mm in diameter. Is it feasable to remove the condenser
element & connect it directly into the mic input of my computer sound
card?


** Told you before - no.

A condenser mic capsule is nothing more than a 20 to 100pF capacitor with
one fixed and one flexible side.

It needs DC polarising with 30 to 100 volts and a sensitive pre-amp with
around a 1Gohm input impedance.


And in this case uses a fet near the element to get some juice
going.


** The FET is no use without the polarising voltage or a DC supply.


I was starting to write capsule, and this certainly isn't a capsule.


** The term " capsule" is commonly used for such things.

Just distinguishes the transducer of a mic from the case / handle, matching
transformer and/or internal pre-amp circuitry.


All the stuff should be allready be there minus the USB.


** Shame how power from the USB is used to operate the mic.



........ Phil



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Relevant Pages

  • Re: Condenser Mic Question
    ... Is it feasable to remove the condenser ... element & connect it directly into the mic input of my computer sound ... I was starting to write capsule, and this certainly isn't a capsule. ...
    (sci.electronics.design)
  • Re: Condenser Mic Question
    ... mic element is 32mm in diameter. ... Is it feasable to remove the condenser ... element & connect it directly into the mic input of my computer sound ...
    (sci.electronics.design)