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Message from discussion Help Question: Electronic stethoscope danger
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Jeff Liebermann  
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  More options Sep 6 2008, 11:51 am
Newsgroups: sci.electronics.repair
From: Jeff Liebermann <je...@cruzio.com>
Date: Sat, 06 Sep 2008 10:51:09 -0700
Local: Sat, Sep 6 2008 11:51 am
Subject: Re: Help Question: Electronic stethoscope danger
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On Sat, 6 Sep 2008 11:09:04 -0600, "WJW" <qua...@comcast.net> wrote:
>In actuality...all the I-Pod does is play/record sound (and not very well due to
>the frequency/tones of heartbeat & pulse)...so...the digital stethoscope is self
>amplified and could operate without the I-Pod if I had a battery powered stand
>alone speaker system I could plug into directly with the scope...or as you
>suggested (great idea), a wireless transmitter that could then relay the signal
>to a good powerful receiver.   Any suggestions (brand/model) along either line?

Nothing specific.  Google for "battery powered speaker".  Lots of
hits.  

I would be tempted to suggest a battery power boom box or karaoke box.
What I'm worried about it that someone is going to run it with the
stethescope while charging the internal batteries.  Too big a risk, so
we're back to wireless again.

Look at the wireless microphones available for persentations.  They're
usually in the commercial sound business sites.  While most have a
built in microphone, there are a few that allow external mics. They're
unfortunately kinda pricy.  You might do better with wireless speakers
that are made to run off a hi-fi.  You didn't supply any interface
specifications, but if the stethescope puts out home hi-fi line levels
(about 0dBm), one of these should work.

I gotta run, but I'll see if I can find something later today.

--
Jeff Liebermann     je...@cruzio.com
150 Felker St #D    http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann     AE6KS    831-336-2558


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