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Hi Stephen, Voltages at pins 7 and 8 are important, they are the other side of the differential signals 1 and 2. We want to make sure there is no imbalance. -- Ozan

Jeff, I believe I have what you need here. Contact me off list. I will send a picture and we can discuss getting this to you. I have two types of the original TEK 1/8" coupler. the solid and the one

how could I get a set of boards?

https://www.youtube.com/watch?v=V-qHTrZPutE

Does the primary winding survive, can a new secondary be wound over it, or is it also unusable?

My thanks to Brad Thompson for sharing the link (Brad is also a member of the Glowbugs Vintage Radio email reflector which I am also a member, BTW. Hi Brad!). A very informative website. To me the key

Roy, I probably was unclear and you miss understood. 1, “new” relative to the analog scopes as you mention, 2, “new” in that W2EAW as an application engineer seems to have a revolving door of

Hi all, I was starting to check and calibrate my 465B which I haven’t used in a very long time, when I noticed that channel 1 behaved very oddly on some settings (mainly but not only .1 and .2

Ozan, Here are the voltages I found today: 1. +4.1370 2. +5.967 3. -1.0252 4. -5.086 5. -3.39 6. -1.09 7. N/A 8. N/A 9. -3.17 10. -0.3455 11. +0.0565 12. -5.84 13. -2.94 14. -0.2709 15. +4.85 16.

Check the above twitter thread for updated images... Bottom line - so far - Nope :-( my JB Weld plus baking soda reinforced Cyanoacrylate not even close and certainly no cigar! :-( I tried some

I wasn't pleased by his Tektronix bashing either, but it is a very interesting site. He does seem to be an excellent troubleshooter. And yes, Tektronix scrap can be thrown my way, too!

Bob, I did some more tests: +33.5 and - 33.5 are shared across all 6 compartments. The +33.5 shows 400mV and the -33.5 shows 680mV (unloaded). Since the PG506 does not utilize these supplies, this

They are delicate and complex to setup and use. Some require a lot of adjustment just to get a trace. Many on epay have issues eg burned out and hard to find tunnel diodes. Unless you have a

Hello I am interested in refurbishing a Tek 7854 for myself. Is the board and overlay by Holger Lubben available for purchase? Are there certain serial number machines to which this board applies? Are

Thanks Steve for starting the probes group! I was at Tek the past 30 years and worked in the probes group the majority of my time there. I was fortunate to have designed or been involved with every

Thanks for the pictures, Pete, I have the same loose BNC issue on CH3 of my 2465. Such a convenient place to put that setscrew! NOT! Cheers, Howie / WA4PSC

If you don't need it, I will take any "Scraps" , Especially calibration fixtures. -- Michael Lynch Dardanelle, AR

Yes... I agree: "probably." But, it is good to be aware of potential noise, if you're trying to copy or model something, based on what you see in an instrument... or even if you are using the

His collection looks like the undergraduate physics labs storeroom, before enough profs died that they could empty it out... for 1 cent (or less) on the dollar. (... a lot went straight onto Ebay...

Nigel: Great way to recover those seemingly one piece latches. I find that many of the plug ins for the scope frame had that style of latch. I have not seen too many on TM500 plug ins. I remember on