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My TDS784D had an annoying intermittent horizontal wiggle on the CRT. Eventually I tracked this down to the connector for the horizontal deflection coil, which was oxidized and presumably

Hey Roger, The power supplies in these scopes seem to have had a series of small tweaks over time, so I wouldn't rely entirely on someone else's shopping list for capacitors if I were you - especially

Have a look at https://www.tek.com/document/online/primer/xyzs-scopes/ch1/oscilloscope-basics for comparison. Raymond

Thank you very much Ray.

As we all know, nearly all consumer products today have electronic circuits. Whether a product is simple or complex, if it includes electronic components, the design, verification, and debugging

Thanks for that, Egge Siert. Unfortunately, the metadata doesn't get me any closer to my 5030's history, except that it most likely has been offered on Ebay, about two years before I got it. It has

Hi Raymond, In your case you can look at the Metadate of the Pictures.Their origin is eBay. In the past I provided Kurt (TekWiki) some 5223 Pictures from eBay Italy. No direct upload from me. When you

I would expect the standby current to be much less than 10 uA and even much less than 1 uA depending on the part number of U2521. It should be a uPD4464C-20 . Better would be the L suffix. Check the

Guess you're assuming that the battery was nominal and that there is some form of above normal battery current leakage? Any idea what should be the expected current parameters? Would this even be

You should measure the current. Regards

Since its so easy to open up this scope today removed battery without even having to move the board, and it only measures 0.11V. I don't understand how a backup battery can get this low in only 8

Monty: Please let me know if you ever have a working ROM for the 4041. I would be willing to buy one for a reasonable price. This is the route Tektronix should have gone instead of forcing us to boot

Thanks for the idea of removing the *front bezel* to get at the fiber-optic display on the R5030. Viewed from above, it seems to be bolted in from all sides in a totally inaccessible way, but maybe

Keep it up, Monty I, for one, am looking over your shoulder with interest! DaveB, NZ

Dear All, I have this scope and I have been suggested in other topic of this forum to Recap at least the LPVS. Since I live in Brazil, I don`t think I can buy any Cap from the local supplier since 99%

Hi Egge Siert, I saw Kurt was mentioned as the author of the pictures but there's still quite a gap - geographically as well... Raymond

The first 10 pages of 20 are here: https://www.pearl-hifi.com/06_Lit_Archive/15_Mfrs_Publications/35_Tektronix/A_Primer_of_Waveforms_and_Their_Oscilloscope_Displays-1-thru-10.pdf There were a couple

Hi Raymond, I assume Kurt, like me, also roams the internet looking for interesting items and their pictures. Greetings, Egge Siert