[cgn-dt-n]

Originally Posted by cporada

Thanks, Glenn! PM sent to Analog Addict

Hello cporada

I once had a similar humming problem that I could not explain. All tubes and cables submerged But the noise did not want to go away. The solution to the riddle was a device similar to the Ground Master. this caused problems after a few days of use. I used a different product and the humming was gone.

Give it a try.