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Re: LM386 Hiss Suppression on the BITX40 #bitx40

 

There's another possibility, found early on, at low volume levels: too-low resistance from pot. wiper to Earth. Anything from 1k to 10k wiper-to-IC cures it. If you've replaced the (blown?) audio IC with an LM386 and found this hiss, it's a simple cure.

73
Dex, ZL2DEX
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