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Good deal on the SD-24! CHIPXS on ebay, is the Tektronix "Country Store", as it used to be called, RAMS now. They have a physical location, and are open to the public on the 1st and 3rd Thursdays of

So it must have been Tek ebay-selling old stock that had been lurking. New old stock!

I'm beginning to think I need to make a femtosecond adjustable trombone line. Though the horizontal display jitter is more important as it says failing part in the video display. BTW If you'll forgive

Yes. David Rawding is still here. : ) I bought five professionally made transformers. One was donated to Bob for his kind help. Two were used by me. Two were sold. I am all out. Another run is ~ $1k

Thank you John! I'll definitely keep you in mind if I run across one and need help finding any parts to restore it. For the record, it appears you have quite the collection! I'm also wondering what

Sorry Jason I only have 3 at present. However if you do find one that needs parts I do have lots of those. I checked eBay and there doesn’t look like there are any there at present. However once

Hello fellow scope addicts... that is to say... collectors! Combing through the messages, it looks like I am about 8 years too late to the party for the batch of 502A scopes that were discovered in

For some unexpected reason the formatting of my previous post was lost so here it is again in what I hope will be a more readable version: Everyone: The following subject threads with their email

Everyone: The following subject threads with their email responses are "very" or "some what" relevant to this discussion of fixing lost cal data in the 11K series. These are the TekScopes archive

An even longer shot would be the stuff for the internal Tracking Generator option. Failing that, the plumbing to get the LO to the rear connector for the external Tracking Generator option is another

Hi, I have two 221 transformers with broken core, for stress caused by the old epoxy stress. See photos: /g/TekScopes/album?id=94520

[This topic continued from /g/TekScopes/message/158778 ] I know the discussion was about the later CSA803(A/B/C) and 11801(B/C). I have an 803 and an 803A. The U500/U511 batteries in

Jon, You might try emailing Forrest Burton (forrestburton@...). He produces replacements (3D printed) that seem pretty good quality.? I have a set of his replacements on my old Tek 454 that

I'll see what I can get for you.

This thread in TekScopes may help. It includes the participants and the message numbers. SUBJECT: Restoration of a 576 Curve Tracer (High Voltage Xfmr) ulf_r_k 09/18/16 #131067 ykochcal 09/18/16

David Rawding *used* to supply replacements for the 576 transformer, who I believe was once (and may still be) a member of the group? HtH David

Well found. Yes - I got mine from Mark Hennesy. It was in a cupboard at the BBC research department where he worked, and he saved it from getting thrown out into a skip. Craig

https://www.vintage-radio.net/forum/attachment.php?attachmentid=132130&d=1478070008 https://www.vintage-radio.net/forum/showthread.php?t=112106&page=2 -----Mensaje original----- De:

Nothing like as extreme as yours, but I had a 485 with a diffuse glow over about a quarter of the screen area on the right side. It varied with intensity control but not anything else until I noticed

The problem is that connecting up the voltage to the input capacitor will put a DC voltage transient up the innards of the AA501 while the cap charges up. That is the reason the 7A19 and 7A29 plugs in