Reconn's World
Domain Names for only $15! Only at Dotster.com
Home | Robo | Electro | Webring | MessageBoard | Store | Advertise with Us

Make A Collect
Call 4 LESS! Dial
1-877-CALL-4-LESS

Have Feedback?
Click Here!


Suggest
reconnsworld.com
to a friend!

+ Robo:

- Electro:
EE Projects
Schematics Depot
power
audio
ir/ultrasonic
transmitters
telephone
led's
misc. circuits

+ Webring:

+ MessageBoard:

+ Store:

+ Advertise /w Us:

+ Link to us:


Questions? Feedback? Email me at reconn
@reconnsworld.com



Find Out!
How Stuff Works
at
HowStuffWorks.com

Want to know when
reconnsworld.com
is updated?

Join the
reconnsworld.com
mailing list!

Subscribe
Unsubscribe

Click here for the reconnsworld.com privacy statement
Electronics >> Schematics Depot >> Audio >> sound detector amp/electret mike amp

sound detector amp/electret mike amp:
sound detector amp/electret mike amp schematic
click here to enlarge schematic


parts:
U1LM741 op amp ic
R11 megohm resistor
R2, R36.8k ohm resistor
R41k ohm resistor
C1, C20.47uF ceramic capacitor
MIC1electret condenser microphone

all resistors are 5 or 10 percent tolerance, 1/4-watt
all capacitors are 10 percent tolerance,
rated 35 volts or higher
this circuit amplifies the output of a regular electret condensor microphone quite nicely.. adjust sensitivity by turning R1
Return to: Schematics Depot, or Audio Circuits
curve

Schematics Depot is a trademarked name held by me as of 1997. No use of that name is
authorized unless in reference to this site. (This means you can't create your own 'Schematics Depot')