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Hi, sounds like you have all the bases covered. I check for ripple by using the ac input to block the dc on a single channel. Why is a differential setup needed? The diode sounds suspicious. Jerry

Few month ago I walk the same path. My solution for adjust the sine wave , was using a SG503 level signal as reference "shape" wave..or any god source of sine wave... Just put both sine signal in a

Dear Dennis...Any clue, where to find "free" the right Manual in PDF ? I'm well aware about quality and honesty from ArtekManuals..but first I like to try find in the web. Regards Gabriel. .

I don't have a differential comparator to check the ripple in the way the manual specifies, but I did throw a 1x probe on it and saw a huge amount of what looks to be sawtooth ripple. That is why I

Thanks Jerry; I have the same result using a variety of cables into a 50 Ohm feedthru termination on several different scopes. It has two nearly identical rectifier circuits (+20 and -20V supplies)

Good photos Tom! Very helpful, useful addition to the archives! Keith Ostertag

Hi phil, Seeing the noisy signal makes me want to check shields and grounds. maybe a bad coax cable. Do you have the proper load on the output? Jerry Massengale

I have been studying and working with an FG 502 function generator. I recently went through the adjustment procedure and was able to do everything that did not require a distortion analyzer or

No, that won't be necessary. I was careful to give my address in case you were not as lucky as I was to have an automotive store a few blocks away. I have since found out you are in Australia which

The PG509 manual is not exactly the same as the High Amplitude Pulse Generator. There were minor modifications and additions made over time, but it will be more than close enough that the Theory of

Thank you Tom, the photos show how they go together. Don Black.

Hi Don, I posted some close up pictures of the side cover and connector body in a Photo album called "7000 backplane connector". http://groups.yahoo.com/group/TekScopes/photos/album/435138780/pic/list

Most of the time, it's batteries that have died. After all, there are six batteries in the scope. It is one hell of a scope though. I am still waiting to score a cheap SD-32 sampler. Since it was a

Still clearing out storage space at Sphere Research, I really need to send these huge 11K frames elsewhere. all are working, and have been in storage, and take 11K plug-ins. Also a pile of hp stuff.

Thank you Chris, that helps. Nice clear photos. Don Black.

Thanks Jerry, that helps a lot. I'll take a close look at the connector with the cover missing before I try anything. Don Black.

Wonder if 11801's will go cheap and still function some day... The close up of the screen shows diagonal band of more points and the band has red and green edges. I wonder what that means, if

On Wed, 27 Feb 2013, jayw_comark wrote: I bought it. Didn't get it yet :) OK, no problems, I'll tell what was wrong. I do have 2 loaded 2465B scopes (BDM and BDV) that I totally refurbished, recapped,

Howdy folks, ? I have another cleaning question. ?I've got a bunch of type L and type CA (and other) 5-series plug ins and the variable attenuator pots have become "dirty". ?They are intermittent