Electronics > Projects, Designs, and Technical Stuff
Silly tread
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TurboTom:
IIRC, the OP mentioned AC / cooling devices somehwere. The 5kHz can well be the PWM frequency of a variable frequency drive (VFD), powering a substantial induction motor. If not properly filtered and no screened cables are used, this noise may radiate anywhere. Will be difficult to eliminate it at the guitar/amp's site, rather have a look at the source and see what you can achieve there...
Wan Huang Luo:
This thread is full of  :-BROKE and  :popcorn:
Gyro:
Agreed. With the OP content deleted, it is indeed very silly to continue it. Somebody up there should have locked it by now.
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