Hi Loetroelli,
Have you tried adjusting the geometry control? A problem/misadjustment there is a classic cause of the "negative time" problem.
-- Cheers,
Tom
--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070
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On 7/17/2024 4:47 AM, Loetroelli wrote:
Hello group,
My ?new¡° 7613 has a X-deflection issue. See posted 2 photos about two weeks ago. The X-deflection seems to depend on the Y voltage. At higher Y voltages the X voltage seems to shift to a righter position (later in time). One photo shows staircase lines where you can clearly see the funny effect. With increasing Y voltage the lines start right (later) shifted. The second photo shows a square wave signal. The falling edges are tilted in ?negative¡° time direction. The 7613 therefore can measure/shows negative time!
