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Does that mean it can trigger from a S-52?

Thanks. I printed it out for quick reference this evening when I do what you said.

Siggi's reply is a very good summary, just to amplify a couple of points: The 2430A digitises at 100Msamples/sec, the rule of thumb is that the useful bandwidth for a single shot acquisition is 1/5th

Sorry, I also added a redirect on the wiki so clicking the link will work now.

To my knowledge, and per a quick reading of the manual, the 7S12 doesn't trigger from the sampling head (left-hand head slot), only from the right-hand head which can be a pulser (for TDR), or an S-53

In the cold light of day I see that I was probing on the wrong pads.... Still no -12V but not the short I though I had... I'll be back when I have better data Dave manuals@...

Thanks Raymond. Notes. I’ll see how it turns out this evening.

You might try this link and see if the manual is any better: https://download.tek.com/manual/tek-465.pdf

Shaggy Dog Summary: Bought a 7A13 plug-in , Known " not working" but no detail. Plugged it in and the 7904 stopped working...8^( Troubleshooting trail so far: 7904 serial B257xxx. Which means it uses

I’m looking for the military version of Troubleshooting your Oscilloscope I was told it went into deeper detail of how too step by step. Andrew

Grrr, you are right Raymond! I forgot about that part of the story. Nevertheless I think my "theory" is correct, though the differences between tube emissions might be not large enough to change the

Repairing a complete 7S12 in TDR setup often isn't straightforward, especially with limited equipment and no spare parts. Therefore, a unit that is not fully functional would only have spare parts

Raymond, That’s exactly why I’ve asked for advice on how to do an initial check to see if EVERYTHING is functioning properly. If’s it’s not fully operational, what would you consider a good

I think there's a misunderstanding here. Stephen initially replaced the original 200pF caps with 250pF caps. That's what caused the lower frequency. As soon as he corrected the RC-times to match the

You have to be aware that the 7S12-set that you describe is a TDR unit, not a general purpose sampling 'scope plugin. The S-6 does not supply a trigger signal to the 'scope. A sampling 'scope needs a

Probably. I just clicked on it… Thanks

You probably included the ":" at the end of the link. Enter the link without it and the link works. Raymond

That's an interesting document on Tekwiki!

Thank you Peter, but your link links to no image…

I have a similar problem on my TEK 475 after repairing the +15V stabilised rail (shortcircuited by a tantalum C on the rail) and finding/repairing a second problem (an intermittent problem in the HV