radioactives
New Member
My old Advance oscilloscope, which I got recently show some disorted traces. There is a ripple, hard to say the freq. but around 1000 Hz on both beams. It has nothing to do with the plugins. The ripple show even with these plugins removed. Secondly, the trace is bent at both ends. I cannot move the trace all the way up or dow, just about 1/3 up and down. See images at: **broken link removed** The upper image show the ripple and the lower the bent edges of the trace.
I have cleaned the scope, removed old dust and have used Teslanol contact spray. I have checked the voltage to the high voltage unit and it does deliver +18V and -12V as it should.
Does anyone have a clue to what could be wrong? Coud it be the deflection of the beam that starts to malfunction, ie getting old?
Appreciate any help and advice.
Lasse
I have cleaned the scope, removed old dust and have used Teslanol contact spray. I have checked the voltage to the high voltage unit and it does deliver +18V and -12V as it should.
Does anyone have a clue to what could be wrong? Coud it be the deflection of the beam that starts to malfunction, ie getting old?
Appreciate any help and advice.
Lasse