September 22, 2018
The Stethophone: Tech Time 010
by Chris Randall
Finally, a new Tech Time! In this episode, I make the Amazing Stethophone, using a $25 stethoscope from Amazon, a cheap lavalier mic, and $5 worth of shit from the plumbing aisle at Lowe's. I did this video with only having a notion that it would work, although I did think about it quite a bit first, so you're actually watching my experimentation process. Whether this is fun or not is up to you.
In any case, further testing shows it works quite well. It is good for getting machinery noises out of the inside of small mechanical things, and it really picks up the resonance in wood well. (Like, stuff that is just a thump with a piezo mic is a nice ringing tone with this.) I think some refinement is in order, but it is a useful addition to the toolkit.