noniverting transistor amp

[Rob]

Stewart Pye wrote:
> 
> Hi,
> 
> Why not use a comparator. Single supply op amp 15V with, say 4V on the
> inverting input, and connect your 5V signal to the non inverting input.
> This should give about 13V on the output that could be limited with a zener
> to 12V ( or use a voltage divider ), Is it for a roland gate trigger?? if
> so it should handle 13V no problem. Op Amps are cheap and easy for this
> kind of thing. ( IMO )
> 
> At 17:23 21/01/99 -0600, Rob wrote:
> >
> >I need to take a digital signal (5v) and convert it to 12v..
> >Is this possible to do with 1 transistor amp and maintain phase
> >relations/non-inverting?
> >
> >It *seems* like every amp I see is inverting..
> >I guess maybe a darlington configuration would do this, but thats two
> >trannies..
> >
> >
> >Rob
> >

WEll, its for a tb303, so that means I have +12v, +5.333v (which is very
touchy), and ground..
so, I guess I could hook up a TL-082 as a comparator, but those take up
a lot of pcb real estate, and I will have to do the voltage divider
thing to get it to work on a single sided supply..
rob