Yesterday my scope was working fine. It went out in the car boot to do a job, and was working fine then. I turn it on today, and first I suspect that I'm too near some big magnets. Both traces are bent into strange shapes.
Not magnets. I look at the timebase with the other scope. Linear.
The distortion looks like something in the tube, the effect itself seems fixed with respect to the face of the tube. On a slow scan, both traces can be seen to wobble across the screen AT DIFFERENT SPEEDS, and at one point to actually STOP. (that,s one point each, not at the same time)
I'll go and take some photos, (and another couple of those little green tablets).
Not magnets. I look at the timebase with the other scope. Linear.
The distortion looks like something in the tube, the effect itself seems fixed with respect to the face of the tube. On a slow scan, both traces can be seen to wobble across the screen AT DIFFERENT SPEEDS, and at one point to actually STOP. (that,s one point each, not at the same time)
I'll go and take some photos, (and another couple of those little green tablets).