11 Jun
2009
11 Jun
'09
1:42 a.m.
this circuit gave me decent result: http://probing.wikidot.com/electret-microphone-pre-amplifier
you can listen a recording i've made with it: http://probing.wikidot.com/local--files/electret-microphone-pre-amplifier/em...
with a very cheap electret microphone (2$). pat