HP logic comparator

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Hi all,

I just got one of these a few weeks ago and it's a really cool tool. You
clip it on suspect TTL chip and put a reference TTL chip inside the housing
and it will show you any difference in the logic states between the two
chips.

I have one question though for anyone who might use one of these. The
manual implies that you can use it on 14-pin DIPs as well as 16-pin
DIPs. It works fine on 16-pin ones but I can't get it to work on 14-pin
ones. Is there something I'm missing or not doing correctly? Do I need
to jumper a ground connection for the last two pins hanging off?

Thanks for any suggestions.

Werner Sharp
sharpw@bellsouth.net

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Received on Wed Oct 03 08:14:48 2001