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Old 10th May 2014, 02:37 PM   #11
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Location: Jackson,michigan
That's a sweet deal Mooly!!

I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.

I haven't needed anything faster until recent years but it still suits me well for my audio and video work.

If I were to get another one the 100Mhz scopes are a fine bargain these days.

If your budget allows I have seen some very nice 300Mhz to 400Mhz analog Tektronix scopes for less the $400!!

That is a far cry from the $1000 I paid for mine brand new back in about 1984!!!

jer
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Old 10th May 2014, 02:44 PM   #12
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If you want to measure the noise in the audio band, your sound card is the first choice because of its high sensity - unrivalled by any oscilloscope.
But if you want to trace the hiqh frequent noise like voltage ripple and other peakes, you will need an oscilloscope.
Bandwith 10..20MHz will do.
I would prefer a stand-alone oscilloscope, not a USB-scope. Comparing prices USB-scopes are expensive sometimes.
So I would recommend some 2-channel oscilloscope from Rigol in the price region of 300 Euro.
Used analog scopes are bulky and do not offer any signal storage, a feature you will love instantly!
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Old 10th May 2014, 02:55 PM   #13
Mooly is offline Mooly  United Kingdom
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Quote:
Originally Posted by geraldfryjr View Post
That's a sweet deal Mooly!!

I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.
It was first out of the bag tbh but its the sort of thing that would be a good first scope.

(We used to use Hitachi scopes at work back in the 90's (The 525 ???) the one with on screen manual cursors. They were very good. Used to use Trio as well. These days I use a Hung Chang 5510 which is a 100MHz bandwidth with true dual timebase but I'm not sure I'd recommend the brand as I've had a couple of problems with mine. Latest was a failed "X" deflection transistor)
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Old 10th May 2014, 03:09 PM   #14
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Yep, Mine has the Onscreen cursors and it was the best decsion I had ever made for the times.
I would never get another one with out it.
I was just looking and saw a Tektronix 2225 50Mhz for ($)21.00 with less than a day to go!!

The only thing I regret was not getting the version that had a Dual Timebase as well.

jer
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Old 10th May 2014, 03:10 PM   #15
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Join Date: Sep 2009
Location: Stavanger (NORWAY)
Quote:
Originally Posted by Mooly View Post
Something like this would be a minimum,
Hameg 20MHz Oscilloscope HM203-6 GWO | eBay
No traditional analogue scope will do FFT analysis which is what your picture shows.
Thanks again. Most of the terms are unknown to me
I will start or with the SW or the simple usb interface
I need to understand i little what i am doing ... then with some experience maybe an upgrade would be reasonable
But now i have nothing
Thanks a lot again, gino
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Old 10th May 2014, 03:13 PM   #16
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Go for the Highest speed for the cheapest price you can afford and you will be fine.


FWIW

jer
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Old 10th May 2014, 03:20 PM   #17
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Location: Stavanger (NORWAY)
Quote:
Originally Posted by voltwide View Post
If you want to measure the noise in the audio band, your sound card is the first choice because of its high sensity - unrivalled by any oscilloscope.
But if you want to trace the hiqh frequent noise like voltage ripple and other peakes, you will need an oscilloscope.
Bandwith 10..20MHz will do.
I would prefer a stand-alone oscilloscope, not a USB-scope.
Comparing prices USB-scopes are expensive sometimes.
So I would recommend some 2-channel oscilloscope from Rigol in the price region of 300 Euro.
Used analog scopes are bulky and do not offer any signal storage, a feature you will love instantly!
Hi and thanks a lot
Yes mainly that also because i think that noise outside the audio range is not so critical for analog audio equipment, maybe for digital.
Now i have to try something ...
Thanks again, gino
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Old 10th May 2014, 03:22 PM   #18
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Join Date: Sep 2009
Location: Stavanger (NORWAY)
Quote:
Originally Posted by geraldfryjr View Post
That's a sweet deal Mooly!!
I have had a 40Mhz Hitachi V-425 for the last 30years and has never failed me.
I haven't needed anything faster until recent years but it still suits me well for my audio and video work.
If I were to get another one the 100Mhz scopes are a fine bargain these days.
If your budget allows I have seen some very nice 300Mhz to 400Mhz analog Tektronix scopes for less the $400!!
That is a far cry from the $1000 I paid for mine brand new back in about 1984!!! )
jer
Hi and thanks for advice and offer
I am always on the move and for that a pc based solution is most interesting to me even if i understand it will have big limits
In the future maybe ...
Thanks again, gino
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Old 15th July 2014, 08:49 AM   #19
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Join Date: Sep 2009
Location: Stavanger (NORWAY)
Hi it is me again
In the end i bought an Hantek 6022be that i hope to receive soon.

As i am impatient i understand that using a normal usb sound card and a SW Oscilloscope i can turn the pc in a digital scope
Could you suggest me a nice software oscilloscope for win 7 ?
Possibly not very expensive but decent in performance.
Thanks a lot indeed.
Kind regards, gino
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Old 15th July 2014, 11:48 AM   #20
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Join Date: Feb 2008
Location: Jackson,michigan
Visual Analyzer, It is Free !!!

Exploring Visual Analyser (VA)

I show here that it nearly out does my scope!!!

The Visual Analyzer VA 2011

and more,

Exploring Visual Analyser (VA)

You can get it here and the link to the latest version is found in the forum once you sign up to it,

Visual Analyser

I see that VA2014 is now on the main download page,

Download

Cheers!!

jer
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