[sdiy] Ratio switching!

[Tim Parkhurst]

On 5/23/07, karl dalen <dalenkarl at yahoo.se> wrote:
> Is it silly to assume one to build a accurate frequency ratio
> switcher with simple resistor dividers? (i.e no pot's).
>
> For example a desired 2416.33mV would require (E24) 16.000k ohm and
> a 5.100k ohm which gives at best a voltage of 2417.06mV error of 0.01661%
>
> Not to bad!
>
> Perhaps just use a quality pot to trim only for the very lowest of ratios?
>
> If i only could easily get hold of a supplier for the complete E196 series! :-(
>
> Suggest a supplier please!
>
> Reg
> KD
>

Maybe Mouser? Otherwise, you might try Futurlec. Good range of 1% Rs,
and reasonable prices.


Tim (resistance is futile, but inductance might work) Servo
-- 
"Imagination is more important than knowledge." - Albert Einstein