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Fix my oscilloscope


 

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Michael has to revise some goals

found problems! 6 months ago

Finally tracked down to power supply – 125V supply isn’t getting filtered. Will try replacing caps and transistors. Found bad cap but replacing it didn’t help. Still not sure why the trace rotation is broken, maybe bad xistor but need to trace that further.

May 18, 02:52PM PDT | 0 comments


Michael has to revise some goals

I broke it, now I fix it 7 months ago

I accidentally broke my Hitachi V212 oscilloscope so now I need to find out what I broke and fix it. Already replaced one fusible resistor temporarily but still some odd behavior with intermittent trace…

May 04, 04:49PM PDT | 0 comments



 

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