On 1 Nov 2013 03:31:50 GMT, "DoN. Nichols"
wrote:

On 2013-10-31, Gunner Asch wrote:
On Thu, 31 Oct 2013 05:56:59 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:

[ ... ]

Further, unless you stick it into a running fan, or light it on fire, a
good stethoscope is a one-time purchase.

There are inexpensive electronic versions with contact microphones, too.
I dunno if they'd last forever like mechanical ones do, but if you keep
the batteries stored separate from the tool, one should last many
decades.

Lloyd

Good point.

I bought a stethescope a few years ago for just this need..and found
out it works very well...but a screw driver works Almost as well and
doesnt need any special care in my tool box.

I have one (if I could just find it again) which I bought back
in the 1960s which has both a 'Y' to join both ears to a single pickup,
or dual pickups so you can place one in one location and the other in
another location, and tell by the balance of sound which is closer to
the source of the noise you are tracking.

Those were invented in New Mexico by Air Force doctors in July of
1947, northwest of Roswell. The APs would use them to distinguish,
um, 'illegal' aliens from humans for processing.

--
The beauty of the 2nd Amendment is that it will not be needed
until they try to take it. --Thomas Jefferson