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121GW louder beep

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fichamba:
Hello everybody,
I've just received today my new EEVblog 121GW DMM, and it is a nice creature!  :)
I have only one question: is it possible, in any way, to raise the beep volume?. I know this is not implemented in the software, but I really need to do it. I have a bunch of DMMs in the lab, both bank and portable, and when I'm looking through the microscope I always need to use a Fluke (say, the 87 IV), because these are the only ones with a decent beeper. Even my Rigols have a ridiculous beep sound... I love this little beast, so IMHO its a bit louder than others, but not enough, almost for me (specially whith the rest of the equipment turned on...fan noise is terrible, specially in Tek scopes -colour, tube, I mean).
TIA for your help, and I send you my best wishes from Madrid, Spain.

 :-DMM

thm_w:
You can see the schematic here:
https://github.com/tpwrules/121gw-re/blob/master/pdfs/121GW%20EEVBlog%20Circuit%20diagram.pdf

Buzzer is listed as ALP05S.
Reducing or removing the series resistor might make it louder.

fichamba:
Great!. Thanks a lot for the schematics. You make my day!  :-+ :-+ :-+

rodcastler:
Funny: I publihed a tutorial on how to lower the volume on the 87V bc I felt it was too loud to my liking.

fichamba:

--- Quote from: rodcastler on April 20, 2023, 11:28:42 am ---Funny: I publihed a tutorial on how to lower the volume on the 87V bc I felt it was too loud to my liking.

--- End quote ---

...it never rains to everyone's liking!  :D

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