Can you print a single transformer to a new PDF, or is that still disabled? I would like to do that for the used Tektronix transformers that I have. wrote:

And your trigger settings? I seem to remember that on startup, these scopes won't trigger, and will show whatever they last captured before power down. My 2430 is not at hand, so I can't play with it

That is with no input at all. Nothing connected to either channel, nothing connected to either trigger. I expect to see a nice straight solid line. Rich

This photo doesn't tell the whole story. What's the input signal and the settings of the scope at large? What were you expecting to see?

Ah...thanks for the info Siggi. Here you go: https://drive.google.com/file/d/1qw72EvsznoUFpUxSSReYg4XRwzbzA6a4/view?usp=sharing Rich

Hey Rich, your photo didn't make it - this forum doesn't allow attachments. Best thing to do is to upload it to a photo album and link it from there. Siggi

Schematics are available on ko4bb.com.

Ernesto, you are right, but today everything is DISPOSABLE and people buy a new instrument rather than fix it. Manufactures are keeping everything inexpensive so fixing today is more expensive, that

Hi Dale, I agree. I would also use for work only older Tektronix and HP equipment that is serviceable. Like I would stay away from cars that don't offer to the owners some service information that

Hi Craig, If the scope was not showing the "11" code, through several power cycles, and then suddenly it did, the obvious conclusion is that something in the RAM unexpectedly changed. This could be

Thanks Siggi - I will try again, but have done it a few times. I also meant to mention in my previous post that the chopped display I am seeing is on both channels. Rich

Hey Rich, It's been a few years since I resurrected my 2430 so my memory is a little hazy, but I remember needing to cold start and self cal twice after battery loss before it came to its senses. I

Thanks Szabolcs - I did do a cold start and self and ext cal...that's how I know it fails repet, which is in the ext cal. Sorry, I should have been clearer. The 9113 failure is for channel 1 and the

Do you mean 1ms or 10ms? The video can be interpreted as 10ms and slower. I would start by looking at anything and everything connected to the timebase selection control, including - timebase switch

No, but field service for many relatively recent instruments is obsolete, as it requires instruments generally not available to those who wish to perform field service. That is why I use a number of

Hi all, I've receveid an help request from a friend of mine. It owns a decent 475 that exhibits this strange behavior with the main sweep ("A"). with trigger in AUTO, the waveform from the calibrator

Hi evdsp39, The manual in tekwiki has also plenty of block diagrams but no circuit diagrams. (has Tektronix decided that circuit diagrams are obsolete??) Did you get any response from the poster

This is a pretty long feed that tarted back in January. Lots of good info thur-out this. I finally got back started again with all the sit at home time. The 2465B s/n B010817 I got a correct

Thank you Victor for the info and reply! out of curiosity, I found that mouser carries the internal battery but from what I've read so far they seem bo last quite a long time. Should I just check and

Yes USD.Bill