Piezoelectric Buzzer Teardown

[@markputham2960]

Don't be afraid to make longer videos. It would've been nice to see more of the testing of the buzzer and really, you're not going for the short-attention-span audience with your content anyway! Keep up the great work!

[@johnpossum556]

You're kidding, right? How much more could you say about a stand alone piezo electric alarm? He was succinct but thorough which is nice.

[@vintageteardown5291]

Great teardown - I didn't know these buzzers had so much going on in them.

[@tbbw]

I love the touch with the picture showing where you probed.

[@PodeCoet]

Love the binary waveform traces!

[@VikasVJois]

Great videos. Being an analog VLSI engineer myself, I love looking at decapped chips and your identification of sub-sections. I'd like to request for a chip decap. The Sony CXA1019S series of single chip FM/AM demodulator/decoder. They were almost ubiquitous before digital decoders came along.

[@protektosafe]

First video, instant fan!

[@captainpp]

great job as always!

[@H4zuZazu]

Hello, i disassembled today a DECT Cordless Telephone from NEC, and is has a realy specialized Chip (LMX4181) in it. Would be interesting if you could decap something like that.

[@jakp8777]

Odd that the cob is in a separate board. Might as well package it in a normal dip package.

[@variousexperiences6485]

Hi what it is the name of this buzzer please

[@RaduOleniuc]

Can you build a small generator with that buzzer? I am thinking of some investment in this thing. Got some ideas including the small microprocessor.

[@ytrew9717]

I'm not sure to understand, what's the name of the component in the middle at 0:54? (I guess you say "auto-transformer", but I don't find any picture of this on google).

[@ShimonKupferman]

en.wikipedia.org/wiki/Autotransformer

[@altarace]

At 3:05 should it be 100V instead of 10V until the transistor is turned back on?

[@electronupdate]

no. the voltage being supplied to the buzzer was about 10 volts and that's where the collector will stay until current flows again.

[@altarace]

But the scope is at 100v per div and it's 1 div. up for ~ 0.75 millisecond

[@daveelam8712]

The scope and probe 1x/10x settings were out of sync.

[@junaid_0948]

Can i use piezoelectric sensor instead of piezo buzzer ???

[@avejst]

Thanks for sharing :-)

[@atmel9077]

Wow. 480 volts!!! The chip probably comes from *Mosdesign Semiconductor*

[@Ispike73]

I like your videos, but you really need to get a better mic...

[@pradeepshetty4975]

No clear voice