uA726 replacement

[Harry Bissell]

I'll have to try this with a temperature stabilized 3046 vs the "hot" chip.
I'm still not convinced that just making it "hot" will really make the tempco
problem go away. I've still got my prototype... I'll measure the temperature
of the regulated chip, adjust the "hot" chip to the same temp... and let them
go head to head....  :^) Harry

(PS to Tomg... I haven't tried that regulated 3046 with the external tranny
(prodigy was it???)  That looks good too.)

Harry (holding his vote for "the way" until I see all the data) Bissell

tomg wrote:

> >
> > The question is: Is there a LM3046/MAT-02 thermostating
> > scheme "blessed" by this group, and can you get it
> > to run using a single supply op-amp?
>
> My standard scheme of collector to +V, base to gnd, and emitter
> thru resistors to -V can be modified.
>
> Collector to +V (say 12V) and emitter 470 ohms from gnd. Then take 2
> resistors (say 10k) and split the supply( +6V ?).  Apply this to the base.
> Heats right up.
>
> -tg
>
>