On Sun, 17 Nov 2002, Spehro Pefhany wrote:

*>At 06:38 PM 11/17/02 +0000, you wrote:
*>>It is a quad 2 input NAND gate and in the 74 TTL series will be 7400
*>>(7403 is open collector). In CMOS series 4012
*>
*>Given the component values, it had better be a 74HC00 or similar. TTL
*>won't work.

It is a 74HC132. Really. There is a more complete schematic elsewhere on
the web. The schematic represents one variant of the Weeder counter
(oringinally from Weeder Electronics).

Peter

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