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In Manfred's & Tom's discussion on Testing with Floating 'Scopes, Manfred stated (on Tuesday, 18 November, 2014 at 0718 (PST)): [snip] "I haven't yet given my GFI's any reason to trigger, while

Thanks David, I like the 2khz test I'll try that. Cheers Alan

Thanks for the kit suggestion, I have ordered something similar already But this seems good too. Cheers Alan

Thanks Dan, I may take you up on that if I can't get any sense out of the printouts, but yes its the layouts I need maybe I take a picture of the real thing and expand them. Cheers Alan

I have a real 475A hardcopy manual, if there is anything you'd like a clearer copy of I would be happy to scan and PDF. The layout pictures are pretty bad, even in the original manual. The 475A is a

Yours is the first one reported on this group in my memory. Was it cracked or any physical damage apparent? I would agree to avoiding pulling the main board but I would extract the leads one at a time

Finally following up on the cause of this failure... It turned out to be a faulty C853 on the main board. I put a DMM across it in circuit and got about 300 ohms, even when I reversed the leads. That

Hey Magnus, thanks, but the credit is all to Jerry & Dennis, as they did all the hard work of gathering and collating the data. I just pushed their data into a spreadsheet, took me all of 10 minutes.

Hey Panos, is this your scope in this video? Looks very similar to what Scott describes. Did you fix it yet? Siggi

A word of thanks to Jerry, Dennis and Siggi for the time you have spent when creating and releasing this very useful list. Highly appreciated! Cheers, Magnus

That all makes sense from what I remember of the 2445B readout design. The way I remember it, there are different conditions neccessary for interrupting the trace to generate the readout or part of

Hi David,Yes, atthe end of the sweep the RO is drawn and after that another sweep starts The mainproblem was a leaking aluminum capacitor in the Readout area and it had destroyed quite a lot of the

When you say "sync works", do you mean that the triggering works? Get a service manual and make sure that you checked all of the low voltage power supply voltages. Do you have another oscilloscope to

The readout multiplexing with the trace on the 24xx series analog oscilloscopes is complicated. If the readout is only being drawn at the end of a sweep, then it should be apparent at even slower

My 2236 has just failed. When I turn up the intensity, the horizontal sweep moves to the right,leaving half the display blank. The left edge of what is displayed is compressed. I pulled the cover and

I like to use the isolation transformer on the device under test to isolate the neutral which is then connected to ground at the point where the probe ground is attached. This isolates the neutral

Besides the safety issue, another thing to watch out for when floating the oscilloscope without an isolation transformer is that excessive voltage across the oscilloscope's line transformer may cause

[TekScopes] <TekScopes@...> wrote: <snip> Get yourself an Airline 74BR-1502B. They took care of the flimsy cardboard cover problems by screwing a nice metal plate to the back. Yes, its an

Regarding quick & convenient modern component testing. I suggest this item which I and several others I know (net 200 years electronic experience) have built and are full of praise for!

When I have found one bad aluminum electrolytic capacitors, often tests show that the dissipation factor of the others has become several times the maximum listed in the specifications. A couple of