I have to wright this in english beacuse there is many ho wants so read about this.
I have written before about my rebuilding project regarding Bradleysmoker, you can see here. First you need a potentiometer from 0 to 500kOhm. With that you can change the bisguitte time between 0 to 55 min.
How you take ewerything apart is shown above (link). Locate the resistor that shall ben taken away and iron. Then iron 2 cables from the hole (where the resistor was) and connect to a potentiometer.
The potentiometer have i mounted on the front of the Bradley with a sign from swedish skyltmax.se. With this potentiometer instead of a resistor you can save a lot of bisquittes.