WJW wrote:
Archon...Good idea but I can not tell if the Belkin requires the
cigarette plug or can it operate independently with internal batteries?

William

"Archon" wrote in message
...
Jeff Liebermann wrote:
On Sat, 6 Sep 2008 11:09:04 -0600, "WJW" 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.


This would hopefully suit you, they are available in Walmart and work
quite well, I had one on my mp3 player in my car for ages due to my
CD player being bust. All you need is your radio boombox tuned to the
transmit signal.
http://catalog.belkin.com/IWCatProdu...duct_Id=166903

Hi, It has 2AAA batteries inside, doesn't need the 12v plug. The
batteries last a reasonable time as I think it shuts down if there is no
audio signal. Mine was an earlier version that I had to switch off but
it still lasted a good time.