Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "James" <jamesrsweet@...> wrote:
>
> --- In Homebrew_PCBs@yahoogroups.com, "daemons_ca" daemons_ca@ wrote:
> >
> > James,
> >
> > I got the TL901 after all. Opened it up today and I see what you
mean about the SMT resistors.
> > So which pin did you use on the connector? From what I can tell,
white is return(common), black is 3mil, and brown 5mil.
> > Black goes to 6K8, and Brown to 3K3. So I'm guessing the lower the
resistance the hotter?
> > I'll want to use a 5K multi-turn trimmer if that's the case.
> >
> > The lowest resistor on the PCB is a 1K5. What temperature did you
get using that? Did you disconnect the other switch? If not, what
position did you put it in?
> >
>
> It's been a while since I've had it open so I forget some of the
details but the pins were labeled on the silkscreen and the one I used
was "HH" which I believe was 1.5K.
>
> I installed a SPDT toggle switch to select between the original
thickness switch and the HH pin. Any number of other methods would work
just as well though.
>

Yes, the HH is a 1K5. Good. I like the SPDT idea. I'll stick with it.
You didn't mention, what temperature do you get from using this setting?

I'll keep you posted.

Marc