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Eddy_Stone · 21st Apr 2017, 8:32 pm

The audio sounds great. After some research it turns out that the oscillator coils adjustment hole in the tuner module is covered by the part number label. I removed the paper label to access the coil but the coil slug won't turn. I suspect the slug has some sort of Loctite or other material to prevent adjustment. Where do I go from here?

21st Apr 2017, 8:32 pm	#5
Eddy_Stone Retired Dormant Member Join Date: Jun 2014 Location: Boston, Massachusetts, USA Posts: 32	Re: Roberts R505 VHF tuning range off The audio sounds great. After some research it turns out that the oscillator coils adjustment hole in the tuner module is covered by the part number label. I removed the paper label to access the coil but the coil slug won't turn. I suspect the slug has some sort of Loctite or other material to prevent adjustment. Where do I go from here?