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Awesome! Congratulations!!

Congrats, awesome job!

Hi all, I managed to shot one channel of my SC502 when repairing an old TV set. It seems the victim is a dual FET in the input differential amplifier with TEK part number 151-1031-00. To confirm its

Hi JP: Yes. Ozone is very reactive and corrosive. I think the idea of using "beeswax" is that... being a "wax" that melts at low temperatures... and perhaps having some properties that absorb ozone

I think that the way that the shutter works is to apply one of three filters (R/G/B) to the white CRT image. To get a white image you have three frames of the same illuminated image with all three

Hi greenboxmaven: The original Glyptal was just phthalic acid [phthalic anhydride] and glycerine [glycerol] both chemicals that are massively produced and used in world wide industry. Glyptal was one

[email protected]> wrote: If you have the board out again, maybe you can just replace the power supply caps preemptively - or you can tack new caps over the suspect ones. See this video

I recently had a bad transformer in my 2235A. I posted a thread on the repair and a link to an album. I proved the transformer was bad by the simple to perform Ringing test... Pictures are in the

Hi Li: Yes. The OP about it spelled it "Gyptol" ... but, in the U.S., at least, it's brand named Glyptal. -- Roy Thistle

About 12 years ago I repaired a 2213A power supply and the main problem was T948. So basically yes, you are probably correct in your assumption that your T948 is bad as well, as it has happened

Hi, I got some questions on this, so I did a short writeup on it, and also the design files are available from there. https://diysquared.blogspot.com/2021/03/readout-for-5s14n.html Szabolcs Szabolcs

Today I'll re-read the manual, more attention to details "My guess is that the entire shutter switches R/G/B on successive frame refreshes, but I don't understand why the complicated shutter circuitry

Minor (moot) point: The 7B85 is a *delaying* time base: It generates the delay time for a 7B80 time base. Because the 7603 accepts only one time base (horizontally), a 7B80 would do the job just as

I am reviving a long dead thread to say thanks for the help on this repair. I was able to get the 284 back to working 100%. The TD was good and this was a biasing issue with the resisters. If any one

Hi Eric, I have 7B53A also. I just got some extra plugins with one 7603. Wanted to see how faster sweeps behave using 7B87; not so well. BR, Jouko

One other thing to note is the 7B87 is a special time base for the 7854 mainframe it puts out some additional signals that are needed for single shot digitize in that mainframe only. The delayed time

Hi Bob, thanks for the information. The only reason for a upgrade was: "Allows saving screen images to the floppy in .bmp format.........shift/hardcopy Allows saving curve files to the floppy in .csv

You are completely right, Brian! P6230 first, then P6056. I hardly ever use a 7S14. I mostly use a 7904(A) or a 7854. If necessary, I use a 7T11A/7S11 with S-4 or the like. I hardly ever play with my

A 475 with Hughes Aircraft tag might have been something to do with Oak Ridge Labs, since Hughes was a govt contractor with capital C.

I've always thought it was called Glyptal? I'm still using it for some instances where I'd have to lock a potentiometer in place after tweaking it, in a high vibe environment. [email protected]>