Two point I was 5T6H3 and remember the government “never” forgets anything, I’m surprised it was only 2 digits Steve

#photo-notice

I agree with all the comments on NewScope. Downside they are a bit pricey, having said that they are very well made and come with excellent instructions. I’ve done several TDS5xx, HP 8566B (though you

Håkan, While you are correct to a point, according to my research in preparation for a class in Calibration. Calibration is defined as the alignment and verification of a(n) something to known traceab

Jared, One other thing. As you’ve probably found by now when the scope says -3.0 volts it will happily dance you up and down to get the display to the “zero” line (it uses offsets to display this). Yo

Jared, You are asking the same questions I struggled through when doing the pile of TDS540(all suffixes) I had to deal with. I think that the most important part of the cal is the first DC volts secti

All right enough of this bullshit Regards, Stephen Hanselman Datagate Systems, LLC

Yes they are pricey, but the kit is well built with excellent instructions. Their display is a bit sharper than the CRT especially when the CRT is in decline. Regards, Stephen Hanselman Datagate Syste

http://www.simmconnlabs.com/2001/2094.html Is the company I use. I’ve done just over a dozen all worked great. My only issue was the first TDS-540C I did, I think (yup I forgot) that the instructions

Buy the LCD replacement soooo much easier. Regards, Stephen Hanselman Datagate Systems, LLC

5 standard cells, I think Leeds and Northrop did a set in a very nice Oak box. Seriously my final standard was a a 3458A with a 3245A, what a set of equipment. Regards, Stephen Hanselman Datagate Syst

Walter, I second your comments. We had a “cal-light” lab. Two GPSDO’s and a HP3458 and a set of Julie labs precision resistors. The 3458 got the stds lab cal at keysight ($1800) and then everything wa

Dave, To a certain extent I understand where you are coming from. BUT, the purpose of this list, IMHO, is to help those who have less experience with working on this fairly complex equipment. As such

No matter what a “book” might say hot-plugging any active electronic device is at best a crap-shoot and more likely a very bad idea. Regards, Stephen Hanselman Datagate Systems, LLC

Normal, if they were loose you'd be in trouble steve

If they are SMB they should BUT, repeat BUT at $1.34 each I wouldn’t touch them. Adapters that work properly and don’t inject their own silliness cost money. Save the hassle and buy one from Mouser or

As a tidbit of trivia and only a little bit off topic. Eimac tried to build, I think it 8877's, at their plant in Salt Lake City with not much success. They determined that the "air in SLC was differe

My favorite PS used an old Burroughs transformer which I cut 4 turns off the secondary. This meant removing 18" of 4in wide copper strap. That was fed through a bridge to 50,000uF of filter cap. First

It’s so nice to hear folks talk about doing it right. My current company and it’s parent both have(had) a policy that if we actually repaired an instrument it was call’s to zero. I’ve seen many instru

Thanks for the thread, this is very interesting! Regards, Stephen Hanselman Datagate Systems, LLC

They also used to throw them in jet engine intakes to polish the blades. Regards, Stephen Hanselman Datagate Systems, LLC