: I HAVE A MOTOROLA 103K1 (MOTORIZED TUNING). IT CREATES QUITE A HUM JUST WHEN CHANGING STATIONS. IS THIS NORMAL OR IS THERE SOMETHING I CAN DO TO QUIET IT DOWN SOME? THE SET WORKS GREAT THANKS TO THE HELP THAT I HAVE RECEIVED FROM THIS WEBSITE.
Hi Mingram
Most of the radios, that used motor tuning, have a set of contacts which mutes the audio. When the motor is running these contacts short the audio signal to ground. They may have been bent or just need cleaning.
Norm