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Tek 465B Z-axis?

Glydeck All Messages By This Member #34804 If it's 5 ms / div I'd suspect power supply hum. I had a symptom on a 533A that looked like that. George toggle quoted message Show quoted text In a message dated 9/29/2008 3:49:08 P.M. Pacific Daylight Time, larrys@... writes: Jordan Kersten <_jordankersten@jordanker_ (mailto:jordankersten@...) > wrote: Photo was added under an album named "Tek 465B Z-axis?" It shows no signal, just a trace showing the problem. What's your time/div setting for the picture? -ls- ****Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators. ()
Glydeck All Messages By This Member #34805 Jordan, For your scope there should be a big knob just to the right of the screen. Just above the knob it will be marked A and B, Time/Div, and Delay Time. You should have a clear skirt on the knob with two black lines radiating from the center. The value (number) that is between those two black marks is the current time per division. setting of the timebase. I suggested 5 ms only because there were three dark lines in the trace, and at that time base setting that would be just enough time for approximately three cycles of 60 Hz across the screen. George toggle quoted message Show quoted text In a message dated 9/29/2008 4:17:12 P.M. Pacific Daylight Time, jordankersten@... writes: I am fairly new at oscilloscope issues. How would I check to see if it is 5 ms/div? ~Jordan~ ****Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators. ()
Glydeck All Messages By This Member #34807 Ahh...Good point. Forgot the part where it's a full wave bridge. -- George toggle quoted message Show quoted text In a message dated 9/29/2008 4:36:56 P.M. Pacific Daylight Time, larrys@... writes: He said 2 mS, but that's the culprit. ~8 mS period is roughly 120 Hz. There will be much hum on at least one test point. ****Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators. ()
Jordan Kersten #34801 Photo was added under an album named "Tek 465B Z-axis?" It shows no signal, just a trace showing the problem. ~Jordan~
teamlarryohio All Messages By This Member #34802 Jordan Kersten <jordankersten@...> wrote: Photo was added under an album named "Tek 465B Z-axis?" It shows no signal, just a trace showing the problem. What's your time/div setting for the picture? -ls-
teamlarryohio All Messages By This Member #34806 glydeck@... wrote: If it's 5 ms / div I'd suspect power supply hum. I had a symptom on a 533A that looked like that. He said 2 mS, but that's the culprit. ~8 mS period is roughly 120 Hz. There will be much hum on at least one test point. -ls-
jordankersten #34809 Also, the dashes in the lines move along the trace...if the trigger is set to Line, the dashes stop and the trigger led lights. Would this be a sign that it's AC line hum? If so, would power supply caps be the likely cause? toggle quoted message Show quoted text --- In TekScopes@..., glydeck@... wrote: Ahh...Good point. Forgot the part where it's a full wave bridge. -- George In a message dated 9/29/2008 4:36:56 P.M. Pacific Daylight Time, larrys@... writes: He said 2 mS, but that's the culprit. ~8 mS period is roughly 120 Hz. There will be much hum on at least one test point. ****Looking for simple solutions to your real-life financial challenges? Check out WalletPop for the latest news and information, tips and calculators. () [Non-text portions of this message have been removed]

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