Anyone know a good, inexpensive way to record the sounds off of a stethoscope? I'd like to get some recordings of the inside of the body.
It's not clear what type of gear you already have. But check out this video with Diego Stocco. He uses a stethoscope and I think he inserted a lavalier microphone in the tube. Not sure, but worth a try.
Some weeks ago I put an inexpensive electret capsule inside the tube of a stethoscope and recorded my stomach and my heartbeat. I paid about 2euros for the capsule and the recordings turned out to be pretty usuable.