Take a look at eBay, you can find a good deal from a reputable seller.

Here is for example a guy that misspelled Oscilloscope in the item title
and is less likely to get many bids ;-)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2532484161&category=4
677

My favorites are Tektronix low end DSO such as

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2531607437&category=4
677

In addition to being great scopes, they can also digitally measure
voltage (P2P and RMS, frequency, pulse width and some of them even do
FFT). In addition, you can connect them to a PC (software extra) and
capture and print signals (great for documentation).

In any case, check the seller feedback before you commit.

Tal


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Dwayne Reid
> Sent: Tuesday, May 20, 2003 7:35 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: Is a 20Mhz Oscilliscope any good?
>
>
> At 12:23 PM 5/19/03 +0800, john chung wrote:
> >I am currently hunting an oscilloscope. I am currently doing PIC
> >programming and hopefully some audio projects in the future. In my
> >country a tektronics oscilloscope cost around USD 250.00
> more than in
> >US. The model that I am referring to is Tektronics TS 1000.
> >
> >I have just received a price list for analog oscilloscopes
> manufactured
> >by Iwatsu. The range start from 20 MHz to 100 MHz. I can
> afford the 20
> >MHz and 40 MHz only. The 100 MHz is a bit too much.
> >
> >The main question is that:
> >1) should I just wait until i can buy a 100 MHz
> oscilloscope(which is
> >expensive). I may want to do so some computer interfacing project in
> >the future.
>
> Nope - don't wait.
>
> >2) is analog oscilloscope any good?
>
> Quite frankly, if you are doing a significant amount of
> analog work, you want an analog scope anyways.  I find the
> DSOs to be painful to use for analog work - too noisy and the
> display rate on most older DSOs is too slow.
>
> On the other hand, the DSO is absolutely invaluable when it
> comes to dealing with non-repetitive or  slow signals.
>
> I keep a Tek 465 on my bench - it is the first thing I reach
> for when looking at something that does not work.  I also
> keep a couple of Fluke 8050 DMMs on the same bench - but the
> scope gets used more.
>
> There are 5 working analog scopes in my shop and 1 DSO.  The
> DSO is idle most of the time, 3 of the 5 analog scopes are in
> use most all the time.
>
> >3) any opinions on Iwatsu?
>
> I've used their 15 MHz scope (same as the Metermaster line) -
> it is capable and has worked without any problems for at
> least 15 years.
>
> >I am really just interesting in obtaining an oscilloscope for my
> >projects ranging from PIC,audio,computer interfacing and (tv
> repair??).
>
> Hard to say which is going to be more useful - analog scope
> or DSO.  Based upon my experience, I'd say the analog scope
> would suit you better.  Others will disagree.
>
> dwayne
>
> --
> Dwayne Reid   <dwayner@planet.eon.net>
> Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
> (780) 489-3199 voice          (780) 487-6397 fax
>
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