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Cheap Chinese Oscilloscope Preamp Tear Down/Review – Is It Any Good?

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5U4GB:

--- Quote from: BennoG on February 27, 2024, 09:22:00 am ---for those who want to reverse engineer here are some x-ray images of the board.

--- End quote ---

Just out of curiosity, that's not something that most people have sitting in their home lab, how are you getting these?

BennoG:
Well I develop vision and industrial automation software as a small company in the netherlands.
And by coincidence because i find it a interesting, the speciality is becoming more and more to x-ray (over 20 years by now).
I have a special room here in the house with 6mm steel wall and on top of that 3 mm lead and behind that concrete.
I have a permit for x-ray development over here to 160kV and 30mA.
For the pcb I used a special microfocus x-ray tube at 50kV and 0.3mA and a 0.4 mm camera.
I we have a project that you see inside steel then you need more power like 100 kV or even 160 kv and more current for example 10mA.

P.S. if you buy a bunch of tulips the chance is about 90% that software I wrote looked at the length of the tulip with x-ray an bunched them at the same length with a machine that I wrote the software for.

tonyalbus:
Jos Verstraten (Dutch) did a nice review on this device,
he seemed to have found all the components an has indeed found lots of problems.
maybe usefull if one is interested, its in Dutch but google is your friend.

https://verstraten-elektronica.blogspot.com/p/t100-differentiele-versterker.html

tunk:
Jos Verstraten also has English pages:
https://chinese-electronics-products-tested.blogspot.com/
https://chinese-electronics-products-tested.blogspot.com/p/t100-differential-amplifier-tested.html

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