Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => AmpTools/Tech Tips => Topic started by: EL34 on March 28, 2024, 08:51:54 am

Title: Oscilloscopes on a budget
Post by: EL34 on March 28, 2024, 08:51:54 am

Check out this video
This technician test a $18 oscilloscope and uses it to fix a commodore computer.
They are now $21 and there is a $24 version that has better cable/probes.
https://www.aliexpress.us/item/3256805458469353.html

There are more expensive units also at Ali.

I buy stuff from Ali Express all the time in case you are concerned about this site.

Title: Re: Oscilloscopes on a budget
Post by: Latole on April 25, 2024, 02:42:20 pm

Nice scope, can I test 240 volts sine wave or it is only good for low voltages ?

Title: Re: Oscilloscopes on a budget
Post by: EL34 on April 25, 2024, 02:45:37 pm

I don't remember
Did he say in the video?

Title: Re: Oscilloscopes on a budget
Post by: Latole on April 25, 2024, 02:59:52 pm

I don't know. I did not listen all.

Title: Re: Oscilloscopes on a budget
Post by: shooter on April 25, 2024, 03:28:42 pm

from what I seen, he stays mostly on the digital side of things, signal path stuff.
from what I know about scopes, you can measure about any VAC or VDC with "input conditioning" so things like voltage dividers for DC and step-down transformers for AC.
scopes aren't really the go-to piece of equipment for "power"  that's best done with meters designed for that purpose

Title: Re: Oscilloscopes on a budget
Post by: acheld on April 25, 2024, 06:22:39 pm

I got one after seeing the price and part of the video.

It is a very simple device, BUT it seems to work very well.   Locks on to signal readily, and displays nicely.

Product info states:   1X 400VPP 10X 800VPP

I would not consider this as a replacement for a standard 'scope due to its simplicity . . .

But I will use it as a monitoring device.   And if it craps out, well ok,  I'm out $24. 

Title: Re: Oscilloscopes on a budget
Post by: Latole on April 26, 2024, 03:05:01 am

Thank you all.
Last Week I just bough Hitachi V-422, second hand, for $90 us
Complete with manual an 2 probes. It work well

Title: Re: Oscilloscopes on a budget
Post by: EL34 on April 26, 2024, 07:20:47 am

Quote from: Latole on April 25, 2024, 02:59:52 pm

I don't know. I did not listen all.

That explains that

Title: Re: Oscilloscopes on a budget
Post by: Latole on April 26, 2024, 07:28:01 am

Quote from: EL34 on April 26, 2024, 07:20:47 am

Quote from: Latole on April 25, 2024, 02:59:52 pm

I don't know. I did not listen all.

That explains that

Thank's