Need Substitute for PN 443-29

[Garey Barrell]

Hi Jim -

This was a line of IC's manufactured by Fairchild corp.  We used to call
them "micro-L" chips.  I checked my ECG cross ref, and of course it skips
from 443-27 to 443-32!  It seems unlikely that Heath would use a
proprietary part for such a standard function, but you never know.

I have an old Fairchild catalog around here somewhere, but can't put my
hand on it at the moment.  Will continue looking and let you know.

73, Garey - K4OAH
Atlanta

At 04:42 AM 5/7/98 -0700, James C. Clifford KE4DSP wrote:
>I am trying to cross reference an Integrated circuit Heathkit part number
>443-29.  It is a buffer storage device in a 16 pin dip package.  The part
>description in the manual is C'Greek letter mu'L9959 where 'Greek letter
>mu' is the same as the micro symbol.
>The decade counter has a similar part number 443-28 described as a
>C'Greek letter mu'L9958 decade counter.
>The local electronics shop has a complete NTE line but cannot cross
>reference Greek letters.   We tried cross referencing on 9959, L9959,
>C*L9959 and came up with nothing.  They suspect this is an OEM part.
>Is there any way to cross reference this part?  Does anyone know of a
>substitute?
>Jim KE4DSP
>
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