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I'm unconvinced it could check the measurement accuracy in one sense, since I assume the cursors and calibration signal are derived from the same source. It could be used to check the X linearity and

Hi Marcial, Have a look at W2AEW's YouTube channel here: https://www.youtube.com/channel/UCiqd3GLTluk2s_IBt7p_LjA search there for 'compensation' and watch the probe compensation videos. This

Sorry, there was a resistor with 104V on it and this resistor was touching the groundplane of the PCB. [email protected]> wrote:

On mine, I had a fault where the 104 was dragging down the 110v The 104v was shorting/arcing to the ground plane of the pcb as it was touching and over the years the paint on the R wore off?. I

I have a bunch of 500 series working scopes. Real room heaters. Keith Wayzata, mn.

The 7934 is somewhat rare (much rarer than the 7834), and is a fine storage scope. Like all Tek's "multimode" storage scopes, bistable is useless (ridiculously low contrast), but in variable

I have found that moving the horizontal volts division selector around significantly affects the trace artifact with the step generator on. Some horizontal volts / division causes a aggravated trace

The 7934 is the best Tek storage mainframe. It's quite usable as a general purpose scope in non-storage mode, but obviously it is not as bright as a 7904 or 7904A. Both the 7934 and 7904A have fans

It seems like most people here would actually use a scope. The other side would be those of us that don’t have scopes to use, but to restore and preserve. I only use a scope to fix a different

Well, there's the 400 series, of which I had some, and still have 468s. I have a Telequipment D75 which was well loved at one time (and put aside for other, more sophisticated equipment). I'm not

Phillip Potter wrote on 3/27/2019 9:46 PM: Hello-- Next question: is anyone out there building an oscilloscope from scratch? (*) If so, I have one only used/RFE cast-aluminumfront-panel? bezel for

Hi, As a relatively recent member, I'm unlikely to ever own or have space for a tube Tek, but I'm thrilled to know that people are keeping them alive. As many as possible, I hope. Please keep

It's probably just temporary; at least I hope it is.? I've limited myself to the 7K series and earlier, omitting the portables.? Have to draw the line somewhere! -Dave

Hi John, I suspect that it's just a matter of what's going at the moment. I have seen a number of older scopes being worked on and written about here, over time. I have a 575 that I intend to use,

The point of this on the 2465s is that it allows the user to validate the time base accuracy on the spot. For this purpose, the poor rise and fall of the calibrator are unimportant, as you just line

Hi folks. I have been observing the topics of interest here for a few weeks, and I am not seeing much on older scopes ie before the 7000 series. I am just wondering if this is a temporary trend or is

I don't like the "calibrator" output on the 24x5 series: the period changes according to the timebase so that there is always 5 cycles on the display. At high sweep speeds (i.e. much faster

Can we assume that the reason you used the flashlight in the video is that you plugged it in and blew the mains?

Hi: It's obvious, so you probably are... but, are you using a properly calibrated probe? Regards.

I've got the unit running with a pair of SD-22s fed by a 2 port splitter from the calibrator into ports 5 & 7. I was finally able to figure out how to manually adjust the skew so the two traces