Question about Tivoli Kloss Model One AM/FM Radio

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The radio emits a loud scratchy noise when the tuner is operated. Can the tuner be cleaned? Or how can I eliminate the noise.

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Mike, Where do you grese the unit??

Posted on Nov 16, 2012

  • Mike Schaus Nov 19, 2012

    There is no need to apply any grease. Simply turn the tuner knob all the way to the left and all the way to the right multiple times. This will spread out the internal grease and fixed the problem for me. All I had to do was call up Tivoli and the person who answered the phone immediately provided this helpful info!


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This problem is often caused by one of two things. 1. Most commonly a build up of grease around the front (Knob end) bearing of the tuning cap causes an intermittent earth connection which causes the problem, or 2. The moving plates of the cap. touch the stationary ones, either because the plates have been bent in a open air style control, or the mylar insulation between them has been damaged in a sealed one (enclosed in a little plastic box).

Problem 1 can be cured by placing a drop or two of WD40 on the bearing and rotating the control back and forwards a few times to clean the bearing. This may need to be repeated once or twice in really stubborn cases

If 2. is the problem, gentle adjustment of the plates to prevent them touching will fix the open air type, while the sealed control with mylar insulation will have to be replaced with a new one - they are not generally repairable.

Posted on Jun 05, 2011

  • Mike Schaus Dec 10, 2011

    I called tivoli with this same problem -- they told me to turn the tuner all the way left and all the way right multiple times to clear out any dust and re-grease the unit. This worked! I did not need any contact cleaner or wd-40.


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I was able to resolve a scratchy tuner problem by cleaning and exercising the variable tuning capacitor.
First Disassemble the radio and locate the tuning capacitor. (it is concealed under a metal shield which covers the front and back of the circuit board) Then spray some tuning spray in the area of the 4 screws in a diamond shape. (These screws are trimming capacitors in the tuner cap.) Next rotate the tuning caps to allow for the cleaning fluid to penetrate. **This last step will throw off the calibration of the tuner dial** You can reestablish this calibration by finding a known station with the dial and then moving the dial slightly in the direction toward where the station should be(on the dial) reception should become poor. rotate one of the trim screws until the station becomes clear, repeat until dial is properly calibrated. Two of the trimmer are for AM and two are for FM.

Posted on Aug 02, 2013

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