noniverting transistor amp

[Rob]

"Fraser, Colin J" wrote:
> 
> > -----Original Message-----
> > From: Rob [mailto:cyborg0 at GlobalEyes.net]
> > Sent: 22 January 1999 15:24
> > To: Stewart Pye
> > Cc: synth-diy at mailhost.bpa.nl
> > Subject: Re: noniverting transistor amp
> >
> >
> > 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..
> 
> Is it for a mod to a real 303 or are you building a clone ?
> 
> I'm pretty sure there are some spare gates in the real 303 that will allow
> you to invert the signal, and then use a single transistor for the level
> shift.
> 
> Colin f

Hey.. yep.. thats an idea.. Now, I just gotta find a few 5v gates that
are running some inputs to ground and cut the traces..
actually, the unit Im modding is a clone (FR777) and, since I am trying
to run my design off of the least important power source (12V), I need
to boost the accent and glide to a level that will allow them to trigger
12v logic.
Rob