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Hi all. Apart from the CEN-U45 is there a readily available replacement? Some people are using TIP 102's with the legs crossed over... Any other suggestions? Thanks in advance. James

I'd say it's most likely a bad solder joint or broken part - something in series with the signal path such that it goes open, but still has some capacitance to couple an attenuated version of the

I seen your repository a while ago and was thoroughly impressed, though this was before I had the tapes or a terminal. I'll have to check it out further. Thanks for reminding me about it. Also thanks

I have 3 CRT's that came with a lot that I acquired 2 154-0910-00 for a 492 Spectrum Analyzer and 1 154-0934-00 for a 494 can anyone use one or all? I don’t have either of those analyzers so if

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