Need replacement for UA739PC opamp. Can anyone help?
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Gman

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It can be replaced with a NET725 but I would rather upgrade the opamp not just replace it. The opamp goes in a driver board for a Harman Kardon citation 16. Any help is appreciated. Thanks.

G
 
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puppyslugg

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Have you spec sheets or any info on the UA739PC/NET725?
 
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Gman

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Yes I meant the NTE725. I would like to upgrade this part. Not just replace it with a knockoff. PPL are you out there? I will have to look at the thread you posted later Budgie. That site is blocked here at work. Thanks for the reply.

G
 
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Budgie

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The post I linked is from Audio Asylum, asking the same question as yours. The reply lists these chips as replacements-
LM1303
SN76131
TBA231
MC1303P

I can't say how accurate that info is, but I thought it might help.
 
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ppl

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the 739 is a 14 pin Dip and is external comp. the last time i had to upgrade one of these was to use a 8 lead Metal can dual opamp that is internaly compensated and arange the leads to match the + and - input the output and Vcc and Vee rails. i used a metal can AD712 with sonic improvements.
 
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