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Original Message
RE: If the sine wave isn't pretty???
Posted by TomWh on March 14, 2017 at 18:16:20:
Well it is from the tubes,transformers, interstages, ac lines etc. That is just the right channel on the phono amp turned on. It is a great sounding phono amp but it has a lot of iron. So the hum is there not enough to freak out but I thought I might use scope as a detective tool.
I have gone after hum before by all the normal means but I thought it would be fun to play with the scope to see if the finger gets pointed to certain area.
So if you have a certain procedure you would use I am all ears. The MV tells us we have unwanted ac but the picture is confusing at best. It is common to both channels.
Thanks Tom