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Old 1st June 2005, 10:52 AM   #1
borges is offline borges  Norway
diyAudio Member
 
Join Date: Dec 2003
Location: Oslo, Norway
Default Need microphone amp

Hi!

I am in dire need for a microphone amplifier schematic! I'd love something simple that I can piggyback onto some amplifiers.

I've got BB opa2134 and opa2227 lying around. The mic I'm interfacing is a Sony ECM-719. It is specified with a 1500Ohm impedance and a -47dBm output level. What is the simplest way to boost this to a level commparable to an audio line voltage?


Cheers,
BÝrge
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