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.

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