Greetings Group, I am selling some of my Tek scope cal equipment that is surplus to my need. I want to thin the herd a bit. So, I am offering this equipment here. Pictures posted in the photos section

I have a big old Tek 556 that I would love to find a good home. I have way too many scopes. They definitely don't make them like this anymore. It is physically in excellent condition. No rust, corrosi

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 proce

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%

Triggered by Walter Shawlee's recent topic about his R5030: A while ago I noticed that all but a few external photos in Tekwiki's 5030 article show my 5030, that very sample. Does anybody happen to kn

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 th

I have a TM506 that came with a full load of plugins, all of which seem to work OK except the SC502 which emits a magic smoke smell. My uncalibrated nose tells me it's coming from the A1 main board on

Thanks to Dennis, I started with 2 R5030's and an R5031 a while ago, and eventually got down to a single partially working R5030, s/n B060445. The others while looking good physically, had massive fai

Hi, I'm just looking for a BNC to flying leads/test pin cable with the small pin connectors for my DC503A. Part number 175-1178-00 I believe they were also used with 7000 series scopes. Picture here:

The following photos have been uploaded to the Mystery Tektronix? Item album of the TekScopes@groups.io group. Mystery Tektronix? Item.JPG By: ebrucehunter

I am having issues with a 2445 Oscilloscope that is not showing the A horizontal sweep. The “B” sweep appears when the B delayed time base is used. The readout shows some dots on the bottom line of te

https://grandrapids.craigslist.org/ele/d/newaygo-tektronix-vintage-535/7193063945.html I have no connection to seller. -- Bert

The following photos have been uploaded to the TDS 684A needs recapping? album of the TekScopes@groups.io group. IMG_2475.jpg IMG_2476.jpg IMG_2477.jpg IMG_2478.jpg By: Rogerio O

ebrucehunter added the album Mystery Tektronix? Item: I received this item with a recently-purchased Tektronix printer. The seller apparently thought it went with the printer. Can anyone identify it?

Dear all, I have a TDS 684A with a very noisy fan. I searched this forum ( Google it) for a replacement and or mod but I could not find any information at all. Any suggestions?

Hi all. I'm currently repairing my TM500 module TG501A which seems to have been dropped on its face in a previous life, and I need to repair the 100ohm potentiometer inside as the rod connecting the k

I am looking for one of these small boxes (around 1" X 1" X 2-3") that had a Male BNC on one end and a Female BNC on the other end. Tektronix made them probably 40 to 60 years ago. What would be a cor

I have a 7D20 with a couple of modifications or options added. Can anyone provide some information about these? The first is a board sitting on top of board A11 above the vacant IC sockets U1230, U133

These 10 simple exercises — beginning with the simplest and moving to the more difficult — will help sharpen your skills in the field. https://baninii.com/2020/09/07/10-easy-ways-to-troubleshoot-with-

Ok, the problem has been solved! As Siggi said, "this makes no sense". He was right, it made no sense. On the inverting input of U870A is the 4.99V reference. It measured 5.14V and the non-inverting i