> why a lot of old equiment are positive ground?
>
> Hand held radios, etc.. etc.. I've definitely seen them with my young eyes, as
> my memory recalls me now.
>
> I may be completely off, but my guess is that in the old times PNP transistors
> were easier to source than NPN ones, perhaps due to Germanium used? Wild guess,
> now do not attack me on my throat please. :o

1.  It's probably a 50/50 choice initially. Electrolytic protection
arguably favors -ve ground.

Space Shuttle commander and airline captains sit in the left seat. It
took me a few decades to realise that that was because in the US cars
are "left hand drive".


2. You definitely won't found out here:-)

Worth watching (almost :-) ).

http://www.youtube.com/watch?v=3GRm_35rHlo&feature=PlayList&p=034D577688532234&playnext=1&playnext_from=PL&index=11

But you'll probably learn something about related subjects, and have
some fun along the way. To spoil it, I'm told this is a Dave Barry
text which has been "drolled up" as it were.






                    Russell
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