PC & mini Oscilloscopes.... cheap but are they any use......

http://www.ebay.co.uk/itm/290594251076?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649#ht_3995wt_804

I want some sort of cheao scope to play with for my DIY projects, I dont understand the specs for these things , I doubt there much use but I thought id ask......

The description sais that it can only measure frequencies up to 3 kHz, which would make it unbelievable useless for nearly everything.

;D that did make me laugh thanks

I got one. (not htat exact one)

Mine measured up to 1MHz, but the issue I saw was the noise performance was terrible. USB ground noise issues with the motherboard and PC.

I ended buying a separate Rigol scope.

/R

http://www.ebay.co.uk/itm/AVR-DSO150-Digital-Storage-Oscilloscope-mini-/160602037986?pt=BI_Oscilloscopes&hash=item2564a09ee2#ht_910wt_698

http://www.ebay.co.uk/itm/ARM-DSO201-Mini-Nano-Pocket-Sized-Digital-Oscilloscope-/130525208266?pt=BI_Oscilloscopes&hash=item1e63e89eca#ht_1488wt_698

Any of these any use .......

I bought one of these last week

http://www.ebay.co.uk/itm/ARM-DSO201-Mini-Nano-Pocket-Sized-Digital-Oscilloscope-/130525208266?pt=BI_Oscilloscopes&hash=item1e63e89eca#ht_1488wt_698

will tell experencies when it arrives - I thougt 1 MHZ is enough as I will use just for repair of
analog Audio gear.

Nick

Nick-ES said:

I bought one of these last week

http://www.ebay.co.uk/itm/ARM-DSO201-Mini-Nano-Pocket-Sized-Digital-Oscilloscope-/130525208266?pt=BI_Oscilloscopes&hash=item1e63e89eca#ht_1488wt_698

Click to expand...

I used one just like the one you ordered while I repaired my analog scope.

All I have to say is that it works, and I would rather have one than be stuck without any oscilloscope at all, but the resolutions isn't the best, and it says it goes up to 1mhz but due to sampling frequency I could only see up to about 500khz. Also sine waves start to look very triangular at higher frequencies.

That being said it has some very useful features like will tell you PP voltage, frequency, and some other cool features.

But I was very very happy once I got my analog scope working again....

http://www.maplin.co.uk/velleman-hps140-handheld-pocket-scope-508678?c=brilliant1&u=promo&t=handheld%20oscilloscope&utm_source=google&utm_medium=cpc&utm_campaign=legacy%20promo%20products&utm_term=handheld%20oscilloscope&gclid=cilxttur-kocfeymtaodt25jig

how about this one

I went through the same dilema as you and decided on buying an old goldstar oscilloscope instead of going the computer software route. I was concerned about putting my computer/laptop in danger and also grounding issues from what I recall. I calculated cost of buying any parts to get the computer oscilloscope version going wasn't much of a difference than buying a used oscilloscope.

gary o said:

http://www.maplin.co.uk/velleman-hps140-handheld-pocket-scope-508678?c=brilliant1&u=promo&t=handheld%20oscilloscope&utm_source=google&utm_medium=cpc&utm_campaign=legacy%20promo%20products&utm_term=handheld%20oscilloscope&gclid=cilxttur-kocfeymtaodt25jig

how about this one

Click to expand...

I've been using a Velleman HS10 for several years for on site visits, it's very useful.  Most of the time you only need to see if an uncorrupted sine wave is appearing at different points through a circuit, & this preforms the job very well.  The one I have is also useful because you can set it to show levels in dB's.

In my workshop I use a conventional scope.