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'[AD]: Selling Tek TDS 220 on eBay'
Sean H Breheny
On 4/18/06, Howard Winter <h2org.demon.co.uk> wrote: HDRW
> Wow, that was quick! It sold 15 minutes after your message (if I've got the timezones right) !
A bit strange to me. I've seen so many people praising this scope and
some other low end scopes from Tektronics. Yet I consider this
scope (TDS220) and some other similar models (TDS2xxx/3xxx)
one of the worst scope I have ever used.
I do not know the 1Gs/s is for real or not but it is much worse than
the old HP54600B I've used before. It is also much worse than the
old TDS3xx/4xx/5xx models. The screen is very slow. It is also
not so user friendly. Maybe I am spoiled since I am using a Lecroy now
Xiaofan Chen wrote:
> Yet I consider this scope (TDS220) and some other similar models
> (TDS2xxx/3xxx) one of the worst scope I have ever used.
> I do not know the 1Gs/s is for real or not but it is much worse than the
> old HP54600B I've used before. It is also much worse than the old
> TDS3xx/4xx/5xx models. The screen is very slow.
I have a TDS210 -- probably the most low-end of all these, but I have yet
to have a problem with not seeing something due to slow screen. Of course,
the "visual feel" of an LCD screen (TDS210/220) is a lot different compared
to a CRT (HP54600B), but most of the time I capture the signal and then
analyze it -- and the analysis usually is /much/ slower than the screen,
and I least feel generally more comfortable looking at an LCD screen than
at a CRT. (Besides of course the other advantages related to space, weight,
energy consumption and ruggedness.)
Seriously, for me the screen seems to show what's there (or better said
what the scope captures). I don't see what one would gain if it were
faster... what are you missing? Or what do you mean when you say the screen
is very slow?
On Tue, 18 Apr 2006 11:11:40 -0300, you wrote:
General user-interface responsiveness on all the Teks I've used is horrible compared to similar
It's the same thing as using a sluggish old PC - it just doesn't 'feel' as nice...
Mike Harrison wrote:
> General user-interface responsiveness on all the Teks I've used is
> horrible compared to similar Agilents.
I can see what you mean. E.g. when I move the trigger point, the arrow on
the display lags for approx. 100 ms or so behind the hand movement at the
dial. Doesn't seem to be a display problem, though. And really doesn't
affect usability, IMO... the times when I have to change the trigger point
in a split-second are very few in between. Usually some finer tweaking is
needed, which takes longer than the responsiveness of the UI anyway.
As you say, it's a "niceness" feature :) Are the other scopes you guys are
talking about (Agilent, HP) in a similar price/performance range (besides
the "niceness" feature)?
>A bit strange to me. I've seen so many people praising this scope and
>some other low end scopes from Tektronics. Yet I consider this
>scope (TDS220) and some other similar models (TDS2xxx/3xxx)
>one of the worst scope I have ever used.
Just remember that the worst 'scope is still better than the best voltmeter
for looking at signals :)
I don't know, those fluke DMM-o-scopes are pretty sweet lookin'... But I
guess those don't exactly fall in either category.
On 4/18/06, Barry Gershenfeld <zmicro.com> wrote: barry_g
On 4/18/06, Marcel Birthelmer <gmail.com> wrote: marcelb.lists
> I don't know, those fluke DMM-o-scopes are pretty sweet lookin'... But I
> guess those don't exactly fall in either category.
Like a motorcycle with a sidecar, worst of both worlds?
I have here somewhere, a "probescope" that radio shack used to sell, sort of
a meter, and sort of a scope. Handy, but man the low rez display left TONS
to be desired.
> Feel the power of the dark side! Atmel AVR
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