Just saw this on ebay in the UK : https://www.ebay.co.uk/itm/Tektronix-Type-545-Oscilloscope-Vintage-Antique-Collectors/353290325095?hash=item5241be8c67:g:-GYAAOSwBPZfvDOx Looks like it's been stored

My apologies. I sure my absence the past 4 days has caused some concern. I have been sick. Tuesday morning I was in bed with what I guess was a stomach flu. The next two days alternated between bed re

Hi folks, I acquired abandoned abused lonely 485 for equivalent of $40. I couldn't leave her there. When the time base is 10uS or shorter it works but it's rather blurred, very far from nice sharp tra

Hi everyone, I'm searching for the above in good condition - if you have one for sale please let me know. I'm based in Switzerland, so prefer Europe but am also open to paying postage from US if I can

Hi, This is Tom Dodge, and I am posting this topic again because I didn't post it right before. I have three Tektronix scopes. I have a Tektronix 533 that doesn't work. When I turn it on, it does not

Hi All: I am getting one. My question is... what do I (What can I) do with it?...I know it is/was intended for monitoring the NTSC television broadcast signal. I do have a pdf of the user/service manu

I have a copy of The XYZs of Oscilloscopes that appears to have come with an early 2213, but I have seen PDFs with the same title with much later copyright dates, and have seen similar for sale online

Have been searching but have not found the latest version of Firmware for TDS540A. Does anyone have an idea? Thank You Luca

This is a continuation of a serious 7L5 restoration started last year. Here's where I left off: https://groups.io/g/TekScopes/topic/31248178?p=Created,,,20,2,0,0::recentpostdate%2Fsticky,,,20,2,0,3124

Anyone know the trick to removing the Delay Time Position Vernier pot? I have the fine adjustment knob off. Now what!? Befuddled.

Photo Album 949D5068-213D-42B6-BA83-64C59169606B.jpeg Dealing with a touch pad that has what think is glass tracing that has developed a crack thru multiple tracks. Anyone had any experience In repair

Having repaired the PSU section of my 2710, I'm now trying to deal with the other issues it has. I'm seeing the error message 'Cannot count VCO, IF'; I've checked the counter signals going into the mi

I've been lurking here for quite a while, and have seen lots of discussions about saving the contents of the firmware ROMs in case they degrade. I have programmers that go back to the early 80's, so c

Are these modules difficult to come up with? There is one on EBAY for $400, stating "UNTESTED AS-IS". I just ask because I picked up a 564 Scope, but it has 3A72 module in it (BW only about half a MHz

Weird. I NEVER have a Captcha / Not A Robot screen or button when using PayPal.... I do not save my password. Have to enter it every time, my choice. Works for me. I do not understand the "how far alo

Hey y'all, I just scored a Model 3 cart for my 7834 locally. After relocating the scope and the modules I have from the floor, I played a little bit with my 7S12. Initially I had my S-52 in there with

I've got a 475A that I acquired for parts (for a 475) but it looked like an interesting repair project, so I've been trying to fix it instead. I managed to fix the low +110V rail simply by unsoldering

Hello to all, I should have many 3A1/3A6 and other 56x series plugins in my stock. The problem is they are on the other side of Ohio at my other house. Let me know what you want and I can look for the

Hello everybody, I have followed this forum for a couple of months. Seems to be full of information. I have just re-capped 7603 mainframe successfully. Both vertical slots basically work (tested with

My main pleasure with equipment is finding inoperative or basket cases and restoring them. I just finished a 2230 and an R-631B. This is an account of the projects, skip now if you aren't interested.