EEVblog Electronics Community Forum
Electronics => Projects, Designs, and Technical Stuff => Topic started by: FriedMule on March 29, 2022, 07:58:26 am
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A circuit is defect and of course protected in a insane hard resin, I have managed to dig out the defect part, a LM394N, but this part is almost unoptanium. Do you know of a supermached pair that is nearly the same in specifications?
Unfortunately, do I not have any idea of how precise I have to be to make sure it works greatly another 15-20 years.
The LM394N is a PNP - NPN matched pair in one chip.
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LM394N is a matched 2×NPN pair and N stands for DIP8 package.
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The LM394N is a PNP - NPN matched pair in one chip.
WRONG: LM394N is just an NPN matched pair in a DIP package.
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You could use SSM2212 on adapter PCB or try your luck on Aliexpress and hope to get a genuine part salvaged from e-waste.
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Hmm... I did search the wrong place about the chip because an "expert" had written about them being NPN-PNP pair, thanks for correcting that.
The SSM2212 looks great, I have not compared them yet, but I imagine they are about the same?
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AS394 from many sources :)
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AS394 modern replacement in production
original store
https://www.ericasynths.lv/shop/ics/ (https://www.ericasynths.lv/shop/ics/)
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AS394 modern replacement in production
original store
https://www.ericasynths.lv/shop/ics/ (https://www.ericasynths.lv/shop/ics/)
AFAIK the manufacturer is https://www.alfarzpp.lv/eng/sc/semiconductor.php (https://www.alfarzpp.lv/eng/sc/semiconductor.php) and ericasynths was just their first reseller