Quote:
Originally Posted by turretslug
Hmm, intriguing! I do recall a Murata data sheet somewhere sometime where they were quite stringent that there should be no DC whatsoever on input or output pins, I assumed maybe something to do with electrolytic degradation of the interfacing bonds? Perusal of quite a few tuner circuits suggests that this guidance doesn't always get followed, though.
Colin
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This has become a common problem on many Yaesu radios, especially the FT-857. I had to have the filters on mine replaced and blocking capacitors installed.