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?
Marc
--- In Homebrew_PCBs@yahoogroups.com, "James" <jamesrsweet@...> wrote:
>
> The temperature mod was super easy since the board already has two settings that are not hooked up and they're even helpfully labeled on the silkscreen and each pin goes to one of a row of SMT resistors. If I were to do it again, I think I'd use a pot, I forget if the resistance gets higher or lower to raise the temperature but you'll want a fixed resistor in series or parallel with the pot to set a max temperature.
>