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 Electronics
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 how to build an electronic stethoscope
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harinrd
New Member

India
3 Posts

Posted - Mar 26 2010 :  1:28:25 PM  Show Profile  Reply with Quote

Hello am duing my studies. Any one please help me to find out hoe to build an electronic stethescope


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audioguru
Nobel Prize Winner

Canada
4218 Posts

Posted - Mar 27 2010 :  1:21:55 PM  Show Profile  Reply with Quote
I fixed the simple Electronic Stethoscope project that is on this site and it works pretty well:
http://www.aaroncake.net/circuits/steth.asp
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harinrd
New Member

India
3 Posts

Posted - Mar 29 2010 :  12:04:49 AM  Show Profile  Reply with Quote
Thank you for your quick reply. Iam looking for an electronic stethoscope which should record the sound to a mobile phone. So my question is how can we connect the stethoscope to the headset jack.
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audioguru
Nobel Prize Winner

Canada
4218 Posts

Posted - Mar 29 2010 :  1:13:43 PM  Show Profile  Reply with Quote
A heartbeat is a very low frequency of about 16Hz. A cell phone cuts off frequencies below 300Hz and heartbeats would not be heard, maybe just clicking sounds.
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gayski
New Member

Philippines
2 Posts

Posted - May 06 2010 :  09:14:41 AM  Show Profile  Reply with Quote
I want this circuit-the e-stethoscope too much, since this can help me monitor bearing defects on the machines I am maintaining.

May I know also who can give or design me a simple ULTRASONIC LEVEL DETECTOR FOR DISESL FUEL TANK of 2-3 meters high, using available electronic parts here in my country-Philippines.
The two big electronic stores here in my country are ALEXAN COMMERCIAL and DEECO ELECTRONICS, selling educational electronics parts, and kindly post also the equivalent part number/s of I.C.'s or Transistor/s, sensor/s.
More power to your site.

Edgardo M. Diolola
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ping_2012
New Member

China
1 Posts

Posted - May 24 2010 :  05:24:50 AM  Show Profile  Visit ping_2012's Homepage  Reply with Quote
Yellow stone diesel parts plant is one of the leading manufacturers
of engine parts, in particular diesel fuel injection system
accessories for replacement, such as Fuel injection Nozzle, Plunger and
Delivery valve, ETC In south of china .

for more detail please visit our website : www.yellowstonediesel.com
www.dieselinjection.cn

Yellow stone diesel parts plant was founded in 1997.Over the years,
Yellow stone has grown and gained a reputation for producing
high quality products and delivering them on time.

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NOZZLE DENSO 093400-7700 DN10PDN130
NOZZLE DENSO 093400-8220 DN0PDN121
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