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Old 8th August 2006, 10:53 PM   #1
poobah is offline poobah  United States
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Default About TEK 7000 series scopes

OK,

So I have a monster digital scope... about every bell and whistle except DFT and spectral analysis.

I need an analog scope... thinking about about 7000 series... becuase I don't want to tie up alot of money. the versatility is awesome etc...

Please give the good , bad , and ugly on these scopes.

Please save the stories about 465B's etc... 7000 ONLY please. Sarcastic humor, of course, is always welcome.

Interested in the spectral analyzer's and links/methods to buy the newest (serial's etc..)

Thanks guys

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Old 8th August 2006, 11:41 PM   #2
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Well, I got rid of my 7704a and then decided I missed the functionality so I purchased another -- great shape and less than $100. I am back to having 4 or 5 scopes. I often use the 2465 or 7704a with TDS3012B

The fellow who started this site left Rutgers and is now at another university: http://www.caip.rutgers.edu/~kahrs/testeq/7000.html The 7100 series is fastest,

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Old 8th August 2006, 11:49 PM   #3
poobah is offline poobah  United States
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I'll take that as a yes vote...

Thinking about the 7904... I don't need the 1 gHz... got that on the digital already and the powered probes are a king's ransom.

Thanks Jack

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Old 9th August 2006, 12:18 AM   #4
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if you get one, make sure to get a 7a22n differential amplifier -- a fabulous plug-in for $30.
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Old 9th August 2006, 01:24 AM   #5
poobah is offline poobah  United States
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Yes Sir,

And I already have the probes... purchased in error for my 11XXX scopes.





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Old 9th August 2006, 01:31 AM   #6
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I have 14 Tektronix scopes! Tek scopes insides speak for themseves of engineers of the past that knew what they were doing and exactly what they were building. Can't get enough of em. I have a 7904a but it is only set up with 200 mhz bandwidth modules. I don't do microwave work . I actually prefer my old 535A which is a 15 mhz dual sweep toobe scope... I think it has over 70 toobes in it. It is one amazing piece of gear and I've been able to gather up just about every module they ever made for it. Many of the later 500 series modules were hybrid... mainly solid state with one or two toobes. We have to give Tektronix credit for being among te first to use FET's... way back in the mid 60's! I like my 7904a but use the toobe scope alot more. Recently picked up a 575 curve tracer that was last calibrated in the mid 70's that still works just fine.

Mark
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Old 9th August 2006, 01:40 AM   #7
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Does anyone remember how to adjust the memory capture of a 7633? I used one extensively back in the late 70's, but I have forgotten how to adjust the knobs to get it right. Great old scope! Not my first choice, but excellent in any case.
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Old 9th August 2006, 03:36 AM   #8
poobah is offline poobah  United States
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John,

There was once a *.mil site where you could pull down all things TEK. For the life of me, I can't find it... it may have gone away.

Home land security I guess... let the terrorists pay for manuals like the rest of us.

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Old 9th August 2006, 10:50 PM   #9
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There are most of the TEk manuals at thi site.....
Boat Anchor Manual Archive

I have a 7633 that I occasionally use to make current inrush measurements. I set it up for automatic storage mode since I am capturing a pulse with it... still works great.

I don't believe the storage function on these scopes lasts indefinately.... once captured there is a finite time until it gradually disappears. I also have the small 211 hand held Storage scope. The CRT is a flood gun type and does not have near as nice a hold function as the 7633 mesh CRT does. Memory settings are quite critical on the 211.

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Old 9th August 2006, 11:59 PM   #10
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The TEK scopes can measure "quiet" -- or at least the old ones can.

WRT the spectrum analyzer modules -- the only one I have used is the 5L4N -- not being old enough to graduate to those employed by the 7XXX series. I do have a couple HPs bought after the collapse of the internet bubble. Regrettably, the collapse of the home-construction market in the U.S. will not pay the same dividend.
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