Quoting Dave Dilatush <dilatush@COMCAST.NET>:

> Jai Dhar wrote...
>
> >Just out of curiosity, is this schematic one that basically turns on and off
> a
> >positive/negative rail with a logic signal?
>
> Yes, it is.  The diagram attached to A.J Tufgar's original post
> showed a switch for ON/OFF control of a positive 15V rail by a
> logic signal; and the diagram I supplied showed how to make a
> negative 15V rail switch controlled by the same logic signal.
>
> Dave D.
>

Ok, this is what I thought - just trying to tie it in with my thread dealing
with MOSFET's, how come you couldn't just use one logic level MOSFET instead
of that and a Transistor? Are there any advantages to using a transistor?
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