Damping the sound on a multimeter
I might just be that I have a build in sound intolerance. But hearing bip-bip-biiiiip when ever my multimeter shifts between ranges in auto range mode has annoyed me for years.
So yesterday I finally made it a priority.
The easy solution would have been to remove the piezo element (that’s the black thing you normally would call a speaker). But then i would sacrifices the audio feedback on the continuity tester.
Instead I placed a sticker over the sound escape, without much success.
Neither two nor three pieces did the trick….
Last solution was to insert a resistor in series with the positive wire from the instrument to the piezo element. (I can’t really any reason why I couldn’t have used the negative instead)
I ended up using a 39K ohm resistor but only after I had been doing a lot of hardcore math.
[To be honest, I didn't calculate anything; it was pure trail and error]
Sound damping
Anyway, I now enjoy using the multimeter much more.
Did I mention that I have a toaster that has a build in piezo with a REALLY annoying sound, especially early in the morning!