Hi, Well, that is what I have and will continue to use ’till I win the lottery; since I don’t play…' larry

The P6139A was designed for the 500 MHz TDS-series (TDS500 e.a.). The P6137 was designed for the 2465B. Raymond

Reg, The display jitter; Is this timing/trigger related, or a problem with the display, ie. CRT circuitry proper?

I plan to browse chipxs regularly. This is hardly an NOS SD-24. Last cal was 2011 due next in 2013. Measured rise times are ~14 ps with uncertainties of 4 ps. I am extremely pleased with it. I

The 2465B originally shipped with P6137 probes. They too are difficult to find in good condition, and at a good price. Many cheap probes will work, how important is signal fidelity to the user? Tek

Hi Mr. Hanselman (may I call you Steve or Stephen?), Are you related to Professor Hanselman at UMO? I see you are a disabled vet! I’m a 100% disabled vet and it is great to see you have your own

Or send them to me and I’ll upload them. DaveD Sent from a small flat thingy

I will try, old farts disease, to check our spare parts box. We have about a cubic yard of scope probe parts, but I think I’ve looked for the 6139 stuff before. I’ll let you know and then drop

Just send them to the TekWiki upload address. As long as their contents are clear from the file names, they can be added to the bottom of the “Manuals” list on the 1L20 page. DaveD Sent from a

Hello everyone, I recently sold my ‘extra’ 2445B to a friend. It was a very good system - had had the fan replaced and was exceptionally clean; the caps all checked out etc… Why did I sell

Thanks David for your generous offer; Where do they get the cores to make a compatible transformer that works in the 576 circuit. This is not a 115v 60 Hz transformer. A friend suggested a plate

Hi Jon, The 2465 supply is such a reliable supply that there should be no need to keep spares. Recap yours, replace the RIFA X2 caps (0.068uf), and it will go the next 40 years without a hitch. It

I was looking at my 1L20 manual and never noticed before that it had two bulletins in its back pouch. 050-0474-00 replacement of Q310, Q340, Q350 for 1L30 1L30 1L40 491 and 050-0348-00 replacement of

Hello all restoring a fine 2465B opt 06, 09. The PSU needs recapping and may have other faults. I would like to have a spare as I have other units. If anyone has a spare PSU that works, I am

Hello all, I did contact Sphere in Canada no response so far. The 3D process can reproduce shapes but the materials are always inferior to the original material, due to the 3D process. Finally a

Hello Folks, my wife and I might be able to chip in toward the end of the year. We have a DAN 576 in the office, but currently cannot get to it due to overload. But toward the end of the year, we

... Someone really did a number when they put this 2445A back together. https://groups.io/g/TekScopes/photo/94526/0?p=Created,,,20,2,0,0 No operational issues as far as I can tell, fortunately.

Jason, don't give up! They're out there and will show up sooner or later. The 502A is an absolutely great audio scope! Tom

More details? Who, when? I thought I was pretty up to speed with 576 posts, but could have missed something... Craig

Do you know for sure that he couldn’t be bothered? Sometimes, with all the best intentions in the world, life unexpectedly and unavoidably intervenes. Most of us aren’t exactly spring chickens