Looks like Jim got the info he needed. Lets end this thread for now.
73, Eric WA6HHQ
Elecraft Moderator, and Dayton surviver.
Jim Miller KG0KP wrote:
> Thanks everybody on the Tek 475 info. I use Google for a lot of things -
> why don't I think of it in a case such as this ??? Old age gets t
Depends on your definition significant.
I had both in a shop and both preformed well for almost all applications. At
DC, audio or video they were virtually identical. At high speed data in the
10 to 150 mbs range the 475 was preferred. RF over 50 MHz the 475 was
better.
The 475 has slightly bet
Is there a significant difference between the 465 and the 475?
K4GM- George
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This
ursday, May 21, 2009 1:21 PM
Subject: Re: [Elecraft] Oscilloscopes
Jim:
Just GOOGLE for 'tektronix 475' and then select one or more of the
links.
I quick search shows that the Tek 475 is a 200 MHz o'scope.
73,
Tom N0SS
At 10:06 05/21/2009, you wrote:
>How do you know wha
Techtronics 475?
>We used them at work for required adjustments to tolerances of 2/10
>nanoseconds.
>
>Thanks es 73, de Jim KG0KP
>
>- Original Message -
>From: "Don Wilhelm"
>To: "Jon Kåre Hellan"
>Cc: "'Elecraft List'"
>
> What is the rating of my Techtronics 475?
> We used them at work for required adjustments to tolerances
> of 2/10 nanoseconds.
>
> Thanks es 73, de Jim KG0KP
For any common model you can easily find info on the web if you aren't sure.
Bandwidth for scopes is like horsepower for a performan
On Thu, 2009-05-21 at 11:31 -0500, Matt Palmer wrote:
> ... Since I grew up with a
> infiinium, i've never had a problem seeing and removing aliasing
> errors and others, but you have to have a decent sense for what to
> expect to see, and know which way to turn what knobs to make it look
> right.
I would stay away from early hp digitals, they are nothing but
trouble, just take my word on this one, you are better off with a 2430
(might have dyslexic on the number)
The new digital lunchboxes are nice too, and if you know what you are
doing you have no problems, I attribute the 'old timers' b
On Thu, 2009-05-21 at 08:13 -0700, Ron D'Eau Claire wrote:
> I agree with Don, I like analog scopes. Any time a signal is taken to bits
> (literally!) and then reassembled there are display artifacts and some
> accuracy of the waveform is lost but, you're quite right, analog scopes are
> *big* and
On Thu, 2009-05-21 at 10:20 +0200, Jon Kåre Hellan wrote:
> Hi
>
> I'm thinking about buying a scope. I've seen many people recommend
> getting an old analog scope, but they're big! I borrowed a compact 100
> MHz digital scope from work, and it was nice. 50 MHz scopes are a lot
> cheaper, thoug
Jim,
You have to know the 'scope specs. The Tek 475 scope is a 200 MHz
'scope, the 465 is 150 MHz.
The frequency rating of the probes will also provide an upper limit.
The resolution on the time axis is quite a different consideration than
the frequency rating for the amplitude (and rise time)
Don covered it nicely. Unless you know you'll never use the scope for
anything but routine linearity checking and other simple measurements in the
HF range, get as much bandwidth as the budget allows in both the
oscilloscope itself and the probes.
The point is that if you put a 50 MHz square wave
uot;
Cc: "'Elecraft List'"
Sent: Thursday, May 21, 2009 8:02 AM
Subject: Re: [Elecraft] Oscilloscopes
Jon,
For use on the HF bands, go for a 'scope rated at 100 MHz or higher, and
be certain to use probes that are also rated for 100 MHz or more.
The frequency ratin
Jon,
For use on the HF bands, go for a 'scope rated at 100 MHz or higher, and
be certain to use probes that are also rated for 100 MHz or more.
The frequency rating of a 'scope is the point where the vertical
response is down 3 dB, so you will not be able to do valid voltage
measurements at fre
Hi
I'm thinking about buying a scope. I've seen many people recommend
getting an old analog scope, but they're big! I borrowed a compact 100
MHz digital scope from work, and it was nice. 50 MHz scopes are a lot
cheaper, though.
Will I regret getting a 50 MHz scope instead of a 100 MHz one?
73
I'm considering getting an oscilloscope and could use suggestions for an
inexpensive used scope.
Has anyone used the Pico Tech software scopes? The entry level USB scope runs
about $250.
Rich
NU6T
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By the way, one more comment on Tek scopes .. I loved the 475, REALLY loved the
2465, but I can barely tolerate Tek's DSOs... Maybe I'm just to dumb to use
them, but I think the menu structures in most of the Tektronix digital scopes
are non-intuitive and obtuse. If you want a really neat digit
Poor John asked if he could use spectrogram as an oscilloscope, and that's
morphed into recommendations to buy a 400 MHz scope! In my last job I was the
video amplifier design guy, and in that role I designed video amplifiers to
drive CRTs in high-resolution industrial computer displays. Over
TX
K2 S/N 4216
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Don Brown
Sent: Monday, January 23, 2006 10:36 PM
To: Ron D'Eau Claire; Alexandra Carter
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] Oscilloscopes (WAS: spectrogram)
Hi
Be caref
" <[EMAIL PROTECTED]>
Cc:
Sent: Monday, January 23, 2006 9:13 PM
Subject: Re: [Elecraft] Oscilloscopes (WAS: spectrogram)
Tektronix 475, baby! The 465 is OK, and the 485 a real 400MHz work of
analog scope art I hope to own someday. Then if you're really serious
you have a 7000-ser
t; <[EMAIL PROTECTED]>
To:
Sent: Monday, January 23, 2006 9:56 PM
Subject: Re: [Elecraft] Oscilloscopes (WAS: spectrogram)
> I have a 475 with the DM44 option, and a scad of different probes.
> It is on "semi-permanent" loan from my company (they have no need for it
>
; <[EMAIL PROTECTED]>
To: "Ron D'Eau Claire" <[EMAIL PROTECTED]>
Cc:
Sent: Monday, January 23, 2006 9:13 PM
Subject: Re: [Elecraft] Oscilloscopes (WAS: spectrogram)
> Tektronix 475, baby! The 465 is OK, and the 485 a real 400MHz work of
> analog scope art I hope
I have a 475 with the DM44 option, and a scad of different probes.
It is on "semi-permanent" loan from my company (they have no need for it
any longer). I have never used the DM44, but what looks interesting is
that it will measure temperature in degrees C. I have the temperature
probe and w
Alex NS6Y wrote:
Tektronix 475, baby! The 465 is OK, and the 485 a real 400MHz work of
analog scope art I hope to own someday...
--
Yep, Tek scopes are the most popular and they are very good. In the 1970's
when I was running a television production studio we had to smug
Tektronix 475, baby! The 465 is OK, and the 485 a real 400MHz work of
analog scope art I hope to own someday. Then if you're really serious
you have a 7000-series mainframe and a lot of plugins hehe.
A really good tutorial on scopes is Tektronix's The XYZ's Of Using A
Scope which they used to
Jim, AB4CZ gave you an excellent summary.
If you think you'd like to use the 'scope for general bench work to look at
waveforms, etc., on HF gear, then look for one with at least a 200 MHz
bandwidth.
Smaller bandwidth scopes are fine for a simple check on your transmitter
waveform, but one of th
The real key to using an oscilloscope for debug is that bit of knowledge
that comes from study of the circuit that you are trying to troubleshoot.
If one does not know what the signal should look like in the first place,
the only thing an oscilloscope will show is a bunch of 'pretty pictures'.
A c
Hi all,
When I first researched buying an oscilloscope, I tried EBAY. I found a
nice 50-MHz Tektronix's and bought it. Unfortunately, it must have fallen
off the truck because it was pretty much beat-up too badly to work. My next
stop was the local instrument rental shop. They had o-sc
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