Replies to Minipulse Plus

[Coolmakina]

Have you checked for correct orientation of the 79L05?

I did a series of videos for building the Mini Pulse Plus. You might find them helpful:
https://youtube.com/playlist?list=PL...x32pI5m-di2GTf

HI,
Thank you for help. In fact it was a trashy meter
BTW, i have seen all your videos. Great help for a newbie baby on electronics like me.
Thank you, regards, keep posting your stuff.
Stay cool.

[surfdetector]

Hi, anyone could give some hint.
I have Started MPP rev E.
Installed c10 of 22uf 16v plus the 79L05.
Can't measure -5v on pin 4 of U3.
Is it because capacitor?

Have you checked for correct orientation of the 79L05?

I did a series of videos for building the Mini Pulse Plus. You might find them helpful:
https://youtube.com/playlist?list=PL...x32pI5m-di2GTf

[Coolmakina]

Hi, anyone could give some hint.
I have Started MPP rev E.
Installed c10 of 22uf 16v plus the 79L05.
Can't measure -5v on pin 4 of U3.
Is it because capacitor?

[Qiaozhi]

There are not enough products in stock

Select "Contact Us" at the top left of the screen and ask when there will be more stock arriving.
Your other alternative is to send the Gerber files to JLCPCB.

[Ssqqar12]

There are not enough products in stock

[surfdetector]

How do I get it ready with ingredients?

https://diydetector.co.uk/store/inde...roller=product

[Ssqqar12]

How do I get it ready with ingredients?

[Qiaozhi]

I want a PCB file in pdf format

It wouldn't be much use, as the PCB layout is double-sided with plated-through holes and ground plane on the bottom layer.

[Ssqqar12]

I want a PCB file in pdf format

[surfdetector]

Thanks

I did a series of build videos for this project. You can find them here:
https://youtube.com/playlist?list=PL...x32pI5m-di2GTf

[Ssqqar12]

Thanks

[surfdetector]

Hello friends
I want the necessary and final files with all modifications to make this device with many thanks

All of the information is here:
https://www.geotech1.com/forums/show...PP-Beach-REV-E

[Ssqqar12]

Hello friends
I want the necessary and final files with all modifications to make this device with many thanks

[Albdelafar]

I did somme measurements, without sound, with sound and with audio treshold set to 0V.
Looking on 2N3904 B



and looking on NE555 out :




With that I suppose my issue is lockated between TP1 and NE555. Can anyone confirm this ?

[Albdelafar]

Yes George I found my first coin with this minipulse !! But because of this audio threshold i suppose, depth is not as i can expect.