[Mhook]

hi everyone
What is the best type of carbon brush for glentek motor Tacho on Fadal?
1-carbon graphite brush
2-silver graphite brush

Which type provides the least amount of wear and the best signal?

[Al_The_Man]

Very rare these days to find any servo still using tach feedback!
For a tach, a soft carbon is usually used.
One source of brushes is Helwig Carbon.

[Mhook]

hi
today I use silver graphite with a combination of 80% silver and 20% graphite and the quality of the signal was much better than Fadal orginal brushes. And the quality of the surface finishing is much better than before
Helwig Carbon are not found in Iran, dear friend