🚀 go-pugleaf

    I have a couple questions about TTL logic that I hope can be
answered here...

    1.  What's the easiest way to go about interfacing a TTL
output (from, say, a standard S or LS AND gate) to a relay, for
controlling anything from automobile (12VDC) to house (120VAC)
environments?  These are two *different* situations.   I'm look
ing for hardware that can be easily picked up at Radio Shack
(gasp!)... if anyone would even happen to know part numbers from
such equipment, this would also be great.

    2.  I've worked with Schottky and Low-power Schottky logic
chips in the lab, and have seen that a no connection to inputs,
such as a simple AND or OR gate, even sometimes in MUX's and
others, drives the input high.  Is this guaranteed true?   If so,
does it apply to all families (S, LS, CMOS, etc.)?  I'm working
on projects that would be a heck of a lot easier if this were
true.

    Send messages to sci.electronics or directly to me.  Any
information is greatly appreciated!
         		                    Ron Pluth

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