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Messages - TJEsmooth61

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The Newcomer's Forum / Re: 739 AND 5558 IC CROSSREFERENCE
« on: May 04, 2021, 09:33:39 PM »
Ok.. just joind your forum to answer this question
Ua739 has a few replacement :-
Ua749 .. does not have same audio db filter but will work
MC1303L direct equivalent
RC4739 direct equivalent

you can also make / use an RC4558 with small surface mount chip adaptor to suit 14pin dip

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