Agree with mapman. Sometimes (also) the problem is elsewhere. you may have crummy A/C power. You may have a computer nearby sending out giant clouds of RFI creating havoc with you audio equipment. Your next-door neighbor may have an illegal shortwave setup. The list is long, and all these things may be the problem. BUT: the problem may ALSO just be in your equipment.
Anyway..try the feritte. It's cheap, and a 'classic' fix.
I still use ferrite stuff in a lot of places..
(and I have about 20 of the Rat Shack claps sitting on a shelf from past usage.)
Anyway..try the feritte. It's cheap, and a 'classic' fix.
I still use ferrite stuff in a lot of places..
(and I have about 20 of the Rat Shack claps sitting on a shelf from past usage.)

