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I'm looking for a set of 4 feet for a TDS5xx, TDS6xx or TDS 7xx scope. The part number is: 348–1110–04 If you have them available, please let me know (off list) your asking price including

As already mentioned, I have a new-to-me 5S14N. Yay. So far it seems that the horizontal section and triggering work as expected but it has a few problems in the vertical section. I certainly

Tek 2445 Mains switch jammed 'on' Hi Before start looking inside, Just came to power the scope off , and find the power switch, although it travels inwards, the mechanism appears jammed ..

Barry, I'm pretty sure that you have misinterpreted how AUTO mode works, the 7B53A service manual (May 1988 revision) clearly says on page 3-9 "When the AUTO button is pressed, a weep is produced as

Hi, I once repaired a 2215 with similar problems. The description of that repair is here: /g/TekScopes/message/164497 Good luck with your repair, Leo

Hello, Sorry to answer you so late but I got a little confused in this site that I recently discovered. Yes, I have tested these connections and even the horizontal amp which is working properly. I

The rear cam in my 7B53N does not turn when the sweep speed knob is rotated. I have disassembled the entire cam assembly but whatever mechanism causes the shaft to be able to rotate the cam is

Jeff, I don't know if the 7B92 is very much different from the 7B53 series, but from what I read, when in AUTO, if there's no trigger signal, a capacitor (C786) stays charged that keeps the MILLER

Barry, though you did say to disregard this question, I will answer simply because it will make the archived messages more useful to other people at a later time (and because I have been looking at

Ok - got parts, made a thing, added pics to album. In this case: a pair of SR44 button cell "retainers". (apparently a "holder" is a complete unit while the plain metal clips that capture the pos.

Apparently it needs about 30Hz or better to prevent that. Thanks, Barry - N4BUQ

As a practical note, you can be bitten by that on slow trigger waveforms.? AUTO will self trigger before the waveform recycles. Harvey

Please disregard. I now see where this is described in the manual. I had missed that! Thanks, Barry - N4BUQ

I'm working on an 7B53N but I think this question applies to many/most scopes and/or time-bases. In AUTO mode, the time-base is in a "free-run" mode which generates a ramp at the selected sweep rate

I just saw that TekWiki contributor Peter on 22 November has merged the 155-0042 into the 155-0028 article and included redirection. Thanks, Peter, if you read this! Raymond

If you have a 1503 you might want to give it a try.? Less fragile and I think, more of a pulse amplitude.? It'll handle a 10 Km string of lights.? Would that be long enough? Harvey

With help from here and in particular John Miles, Didier (KO4BB) I. Yrj?l? & Dr Luis Cupido I tackled a so so 492BP and have whipped it into shape. Many new caps in power supply, fan, other leaking

I had a few moments and tried this with a dead string of LED lights. I can see the end of the string when I short the socket for the next string, but I can't see any difference when pulling LEDs

Hi, If memory serves me correctly, "onsale.com" was first, eBay used a slightly different model.? I did buy from the folks but thy closed shop in 1999 +/- Be well,DBN aka John

Hi Roger, There is a separate calibration procedure for the 177. There are 2 op-amps in there that need to be adjusted. It has been a while since I have made the 577 videos but if I remember