singing-stovepipe effect

singing-stovepipe effect

[′siŋ·iŋ ¦stōv‚pīp i‚fekt]
(electricity)
Reception and reproduction of radio signals by ordinary pieces of metal in contact with each other, such as sections of stovepipe; it occurs when rusty bolts, faulty welds, or mechanically loose connections within strong radiated fields near transmitters produce intermodulation interference; the mechanically poor connections serve as nonlinear diodes.