https://seattle.craigslist.org/est/ele/d/snoqualmie-vintage-tektronix-577/7212143179.html

https://www.facebook.com/marketplace/item/2672172223098237/ Tektronix Oscilloscope model 7904 + Tek Lab Cart model 3 $700 in Lake Oswego, OR

Hi Clark, No. I have been working on something else I need much more. It will be done in 2 weeks and then I am free to start on something else. I would like to make the 7804 Conversion board but first

HI all, I am out of my depth, no question but I'm going to ask and see what you guys think. I have a TDS 340A which has behaved well but now has some kind of switching artifact that makes it impossibl

Hi all, It’s been a couple of years since my last appeal. I’m looking for the vfd display used in the counter timer of the 2236. Part number is 670-7423-01 for the small board and 150-1110-00 for just

Hi all, As you might know, I recently joined the 519 club with a excellent specimen. It came with a few accessories, namely 2 x 50T/125T throughs, 1 x 50T/125N through, and 1 x 1000MC timing standard.

If you are a 561/564 fan (like me), and have some 3B1/3B3 plug ins, you may have a use for this kit. It provides a replacement silicon transistor and bias resistors to replace a bad 151-0062-00 german

I had in my used parts bin two DALLAS DS1235ABW which I'm pretty sure came from the CPU board of a scrapped later 2400 DSO, I'm not sure which though. On a 2430A B030000-up they are A12U350 and A12U66

Couple days ago powered on my Tek 577 D1 and found ripple on the display curves. https://groups.io/g/TekScopes/photo/255563/1?p=Created,,,100,2,0,0 Later I found a leaking electrolytic capacitor C124

There is one shipping trick we have used that works really well, if the items will fit in a padded bag, and stay around 100g, they can ship for just US$6. A lot of items can do this, especially small

See picture in link. I need one to repair a 7854 that was poorly packed and banged up in shipping. eBay is not providing and the duckduck isn't finding any stock either. http://www.barrytech.com/tektr

I have a 577 that has developed a interesting problem It seems to be exclusive with transistors when the base terminal is used, when I am testing components such as diodes where only the base and coll

I am trying to figure out an air filter for my two 547's and a 556. I found an air conditioner filter that is close in size, but when I used it, I got too little air flow and the 547 overheated. Proba

Let's face it, right about now, EVERYBODY needs some cheering up. We have put all kinds of goodies on the Holiday Stuff Season page, HP/Agilent, Tek, Fluke and more, plus all kinds of amazing, dirt ch

On 2020-10-15 3:56 p.m., Tom Lee wrote: > Those who are interested in learning more about the amazing technology > of scope CRTs might want to read Pete Keller's terrific book on the > subject. See ht

Dear all, I was doing a A5 board repair of a Tek2465BCT I bought some time ago. This is a late unit, serial # B0577746 and the A5 board is the 671-0965-05. I inspected the board when I bought the unit

Dear experts, One of my 7A26's distorts a 1 ns falling edge (PG506, followed by 50 Ohm attenuator) as shown in this photo: https://groups.io/g/TekScopes/album?id=255438 Both channels show the same. I'

Wondering if anyone has been able to test the 2465B power supply boards (A1A2, A3) together, without reinstalling into the scope? This would allow checking the supply voltages and ripple to at least m

I am thinking about trying to tackle a calibration on my 7854. I have confirmed that the digital and analog sections are out of adjustment. The digital section is about .8 division left of center. In

Today, a friend gave me a 224 scope, which is completely dead. Unfortunately, I did not find a service manual or schematics for the 224. Does anybody know a source? -- Best regards, Fred S.