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Quad NAND Gate

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on1aag said:
Hi Sam,

A CD4093B is a functional replacement for a 74HC132 but it's
not pincompatible, it is also much slower than a 74HC132.

https://www.alldatasheet.com/datasheet-pdf/pdf/26897/TI/CD4093.html

Your circuit probably oscillates because the NAND gate needs
to have schmitt-trigger inputs.

on1aag.

Thanks on1aag
I want to build two circuits from the ARRL manual. One is a inductance meter and it calls for a 75HC132, and one is a capacitance meter and it calls for a 74HC132. https://www.arrl.org/notes/hbk-templates/lmeter.pdf The web site does not have a parts list, I got those from the ARRL manual.

(Edit) I just found a few articles on a ham radio site with the same questions about the 75HC132 listed as one of the meter parts.
It seems it is a typo, and should read 74HC132 for both meters.
But it seems you allready had that insight! Thanks again, Sam
 
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sam2 said:
Thanks on1aag
I want to build two circuits from the ARRL manual. One is a inductance meter and it calls for a 75HC132, and one is a capacitance meter and it calls for a 74HC132. https://www.arrl.org/notes/hbk-templates/lmeter.pdf The web site does not have a parts list, I got those from the ARRL manual.
Sam

That 75HC132 is most certainly a typo from ARRL, should be 74...., wouldn't be the first nor the last typ0 they make ;) Any of the 74XX132 will most likely work...
 
Leftyretro said:
That 75HC132 is most certainly a typo from ARRL, should be 74...., wouldn't be the first nor the last typ0 they make ;) Any of the 74XX132 will most likely work...

Thanks Leftyretro, I spent a good hour looking for that part!
Hey, your my neighbor.
Sam
 
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