Audio buzz

[email protected] All Messages By This Member #43053 Hi, I am getting a buzzing coming through the speaker on my bitx40. Oddly this seems to quieten or completely disappear when I wriggle the power in the back of the case?? Could this be ground related? I can鈥檛 see anything obvious...聽 Regards Carl.
MVS Sarma All Messages By This Member #43054 Rdeduce the value of100 ohms battery feed to lm386 to say 20 or 10 ohms. Just get a 12 ohm and place above 100 ohm and solder. toggle quoted message Show quoted text On 28 Feb 2018 14:30, <M0clscarl@...> wrote: Hi, I am getting a buzzing coming through the speaker on my bitx40. Oddly this seems to quieten or completely disappear when I wriggle the power in the back of the case?? Could this be ground related? I can鈥檛 see anything obvious...聽 Regards Carl.
Raj vu2zap Member Profile All Messages By This Member #43065 Carl, Bad connection on the power jack, see if you can find another jack from a discarded walwart the fits snugly. Some have a slightly small hole and can be drilled to enlarge to fit. Raj toggle quoted message Show quoted text At 28-02-2018, you wrote: Hi, I am getting a buzzing coming through the speaker on my bitx40. Oddly this seems to quieten or completely disappear when I wriggle the power in the back of the case?? Could this be ground related? I can抰 see anything obvious... Regards Carl.

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