The Curious C-Beeper capacitance measurement
Check out Alan Yate’s video about the Curious-C Beeper:
When a capacitor is touched to the probe, the probe beeps at a frequency that varies with capacitance. The frequency change is so steep with capacitance that tiny capacitors may be precisely matched or an exact fixed value may be selected to replace a trimmer in a prototype. If the user has reasonably moist skin, simply holding one lead of the capacitor to be tested while touching the other lead to the probe is all that is necessary.
Thanks Matseng! Via the forum.
This entry was posted in hacks and tagged C-Beeper, hacks.

Comments
One rather neat function of this beeper is to check where a break in a wire is. Put a finger on one end of the copper inside and then just slide the beeper along the outside of the insulation and you can hear where the break is.