Thanks Alan for that kind introduction.
Just briefly :
Realising that there are a great number of Scalextric Formula Junior Cars idling away through not having any brushes - and that these are no longer available, I decided to produce some...which was not easy considering the size - the brush part being just 2mm square.
Well two years later and after a lot of testing together with a top-class brush producer based in Germany, these diminutive brushes are available once again.
Made from an Oxygen free copper material (GP14) - these brushes are far superior to the carbon ones of old :
1. Current Loss is minimized
2. Reduced arcing between brush and
commutator 
3. Grime and dust reduction on
commutator 
4. Increased longevity
5. Profiled - ensuring maximum contact with
commutator 
6. Strong weld to arm (so they don't fall off...as happened previously)
Tests proved that a much lower current was needed to get these small motors to get going - and that they ran cool - which is always a success.
I'm very happy with the results - and will use all of the learnings gained to produce new types for other motors. Please do send me any untypical requests - and I'll factor these in.
Pricing
1 pair = 14 USD + 1 USD Postage. No additional postage costs for additional quantities.
For more that 1 pair - I am happy to quote you directly. Please PM me.
Payment
Via PayPal :
[email protected]
Questions : do let me know should you have any questions regarding these brushes or any development work.
Kindest regards Anna