Hello Dennis, To pay with PayPal, it need more than MarianT@... . I don't know what the "..." is. Clearly, I'm lesserly smart than others, but I just don't know what to use. Thank you, larry

I was wondering if anyone was willing to make the boxes for the multipliers so ones that go bad can be made. The box would need the holes for the wires and mounting threads as original. The old epoxy

I am looking for the schematics of the two military scopes. I prefer paper or print-out. Thanks. Mark

I know some of you guys deal with older computers and PCMCIA cards so I figured I'd offer it up here first. I have an ISA bus PC Card adapter (card that goes into the ISA bus and you can plug a PC Car

IIRC, the 3A1 uses a pair of 8233 tubes (look like oversize 12AT7 or similar, but not compactron) which, for some reason, are prized by audio-phools. So they go away. RegardsJeff Kruth In a message da

Hi All: There are copious discussions about the 475A service man, and schems, on TekScopes But, I don't find a 475A service manual on TekWiki... but it is on the Web, and pretty good scans of the 475A

Checking out a recently arrived OCP5502. Fails on 'ZERO' operation. TEMP indicator illuminated continuously. Hot smell, faint smoke from region of optical receiver module after a minute or two... Does

I have had PayPal for many years and it has gotten a lot of use for both buying and selling. Mostly buying the last few years. Also many years ago I did a group buy for over 1000 Nixie tubes that I th

All, Tekwiki is a website for the community of Tektronix oscilloscope enthusiasts. It started in 2008. It is edited by many people. You can browse recent changes: https://w140.com/tekwiki/index.php?ti

Further to some very reasonable requests, we have added new (and cheap) color LCD displays and other interesting bits to the R+D Magic section, as well as a new category for Audio parts and equipment

I am new here. Please excuse this simple question. I have flailed for a few days trying to answer it myself. I read many directions to “search the archives.” Can someone point they way toward same? Th

Hey all, As part of my 465 tear down experiment I got the CRT out today. What a fascinating and terrifying experience! The good news is that it went off without a hitch. It's not complicated at all, a

I had an occasion to recently part out an old Tek 520A NTSC vectorscope that was one of two lying around in storage given to me by a past client. To say the least I was impressed about the packaging d

Anyone know what the Tek part no. for the CRT used in the TAS 475 is? DaveB, NZ

Hi everyone. I hope you are all doing well. I recently purchased a Tektronix 1107 dc supply for 2200, 2400 and 2300 scopes. It’s kind of neat, mounts directly on the back of the scope. I tested it tod

Hi All, My Tek 475 I bought locally about a week ago seems to work fine after cleaning all the controls. I have cleaned the front panel and it looks really nice. Before I put the cover on and put it i

I JUST SPOKE TO PETER KELLER WHO IS THRILLED YOU WANT HIS BOOK! ================================================================ These are the payment instructions for all of the INTERNATIONAL Orders

If you are using PAYPAL to pay for Peter Keller's book I cannot tell what choices you will be offered. PayPal may use different terms or language to describe your options. It is EXTREMELY IMPORTANT th

I made a post earlier about a mystery cable coming from the A4 board in my 2465B. but the more I look into it, the more I am puzzled about the A4 board in this scope. I can't find any photo or manual

Hello all, I have probably developed cancer. I can't get in for treatment. I have enough lumps in my body that it probably wouldn't make a difference. So more than likely I am dying. I am asking for e