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ALLRIGHT!!! DMM selector switch removed successfully, TEK switch module replacement due in this weekend. Took me about two hours. I thought it would take days. I will post some pix later. However,

It seems that the color rules are: 1. Avoid blue plastics used by Tek 2. Avoid red M&Ms Neither of them last 40 years!

I recovered and posted the files for EZ-TEST v5.0 and the 4041 System Verification tape on my 4041 github repository 5 years ago: https://github.com/mmcgraw74/Tektronix-4041-GPIB-Controller I haven't

I have these 5 tapes for the 4041, any chance someone has a working 4041 still and can back them up? If they aren't dead that is. I'd be willing to pay for shipping both ways and for your time. 4041

Hello everyone, My name is Jack, and I have a 575 that I am trying to understand better, and to calibrate and fix a couple of small things. The present issue is that I can’t get the single

The cam switch drum is one of the many plastic parts in the 7000 and 500 series with this issue. The material becomes brittle and develops chalky white residue on the surface. From what I gather, the

Karin, There was a request by another list member for help acquiring pages that are missing from the various 7934 PDF copies of the May 1986 revision manual out on the internet. I was trying to

Just as a sidebar, my manual in section 7, last page is 7-74. Karin

I had problems with broken individual cams and bushings in the attenuator of a 7A29, which I think are the same gray plastic. I had to do some tricky repairs to put them all back together. The story

I have an original Tektronix service manual for the 7934, dated First printing May 1986, I also have two, count them two, 7934. Is there any question I may answer for you????? Karin Anne Johnson

https://www.3erp.com/blog/injection-molding-defects/ Look under "Surface Delamination." Greg

Hi Wamor, Would this work on a TDS620A? Rafael

To me, that appears like someone has used an incompatible contact cleaner or such on it. Russ

I would very much appreciate those scans Mark W7HPW Real Radios Glow in the Dark

Where and who is "Mark, the OP"? Could you consider uploading just those 3 pages, 3-1, 6-22 and 6-23 to TEKSCOPES files area? That would help anyone, including me, update the old manual until such

I have some (PG506 for one, IIRC) cam switches that are cracked on the ends, and I expect they're on borrowed time. Nothing as bad as in Clark's photos, though. I've had the same thought, more

I was fortunate to find an NOS replacement for one drum , 105-0509-00. That allows me to experiment with the bad unit; however, I am not sure where to start. One thought is to find a compatible resin,

Last time I did serious IEEE programming was writing a driver using PLM-86 for one of the competitors in the MATE program.? That was a LONG time ago.? TMS9914 I think was the chip. Harvey.

Hey Clark, I've never seen such a thing (/g/TekScopes/album?id=301415), how strange. I wonder if anyone here knows what sort of plastic Tek used for these? I've never looked closely

I ran the 492 long enough for it it wake up again, and tried swapping a cold VR module in…and it kept working with a full scale peak, which ruled out the VR (and calls into question my notes on