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I think you got that backwards Pins 1 thru 13 (bottom) are all the same Pins 14 thru 28 (upper) are mostly custom select as per units allow. Don't forget side A and B looking from the front A is on

Mine is an early serial number B0102xx an still well within specs. Jeff

Dave Henderson of Artek manuals posted awhile back showing how to replace a comb binding. DaveD

I bought a bunch of black and white combs and a small-capacity comb punch a while back. I used it to replace many crumbling Tektronix manual combs, as well as binding various other documents (such as

Years ago (2006), I found a comb binder on ebay. It was about $112. Did not include supplies, which are easy to get. the trade name was Ibimatic, which is a brand of Ibico. It's handy to have. I don't

Thanks, that fixed it. Bit embarassing, should have read the user manual before looking at the service manual.

I can check the 2 of mine if that would help. I would suspect that they are close to spec if not in spec. I am curious if the 2 where the output is falling off are early serial numbers and the one you

Zen, Thanks for your reply. Table 3-3 of the manual suggests typical LF limits of 4.70 and 9.09 MHz on the two ranges in question. My units get very close to, or past, these values before the output

Thank you! I have scanned and uploaded the Ballantine 6126M manual to KO4bb and BAMA. I have an early and late 6125B/C manual that is in the que to be scanned and uploaded...

Fellow Tekkies, You find the darndest things when you're cleaning up. In this case, it was a clean reproduction of the operating and service manuals for the Ballantine Labs 6127B O-Scope calibrator.

Sorry that I haven’t been following this thread closely, so forgive me if you’ve already explicitly verified that the vertical calibration has not been affected. But if the vertical gain is off by

Thank you Toby and Ken for making those measurements. I have several reams of paper on order (28 lb and 32 lb because, as you say, heavier feels better). At the moment I'm using a blue 1/2 inch 3-ring

FWIW, I weighed 10 pages of a Tek 515A manual, I got approx 107 gsm -- approx 405 gsm for the blue covers. Of course heavier always feels better (I would try at least 120 gsm equivalent). --Toby

------- There are good suggestions in the other posts too. Given t

Hey Grayson, It'd be helpful if you could describe what you've done and seen in some detail. Detailed observations are vastly more likely to produce useful advice than writing up your conclusions.

I suspect horizontal gain drift since that fits the symptoms and I don't know of any other problem. I replace all the electrolytics in the power supply and everywhere else I could find one. Just not

Jared, Thanks, very helpful. -- Michael Lynch Dardanelle, AR

If nothing else, sounds like you need to perform the trace rotation which is a screw trim adjustment which can be accessed from the front panel between the Focus and Readout control knobs just under

Amphenol If they have the cable you need. Tend to be a little on the pricy side. $20 for a longish BNC but one of the top shelf brands before you get in to the exotic high frequency cables and

When the output falls is the frequency outside the selected range? I have one that will let me set the frequency quite a bit low and high on the selected range but the leveling is not specified