NMC 1563 active filter (1980's)

B

Bob Hide

Guest
I have some filters, consisting of a chip (14 pin dil unknown) mounted on
what looks like a ceramic substrate with thin film components on it. It has
the following marks on the substrate NKT NMC1536 81 119.

I have no information on them, but recall that they were very expensive at
the time, anyone have any info on them?

Thanks

bob
 

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