Electronics > Beginners

DSO138 oscilloscope

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nForce:
Where can I get a power supply for this oscilloscope: https://www.ebay.com/itm/Fully-Welded-Assembled-DSO138-2-4-TFT-Digital-Oscilloscope-1Msps-Probe-B1/382222708181?hash=item58fe3fadd5:g:NTEAAOSw881Zs1d1:rk:2:pf:0 ?

Because I don't get it with the package. I know it's not a good oscilloscope but, when I get use to it I will buy more powerful one.

Thanks.

IDEngineer:
From the PCB silkscreening it wants 9VDC. A suitable 9VDC wall wart supply is likely hiding in one of your drawers somewhere!  :)

I am a bit troubled by a PCB that has been "welded"....  :-DD

Gyro:
If you want true portability, a 9V (6 cell) AA battery holder with Alkaline or preferably NiMh cells works quite well.

exe:
I think manual says supply voltage should be in the range 9-12V. Above 12V onboard voltage regulator may overhead (so says manual, afaik).

I think mine worked from 8V or something. Below I started to get huge offset errors.

Gyro:
I implemented some mods to make mine more battery friendly, specifically for a 9V battery supply. It works from about 5.4V - 11V (ie. down to about 0.9V per cell)...

https://jyetech.com/forum/viewtopic.php?f=18&t=744

Use at your own risk (particularly the removal of the reversed supply protection)!

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