I guess I don’t have to answer Q3 &Q4 ………
not something I suspected, but the shop sold me two 2 KOhm trimmers instead of
5 kOhm trimmers ????????
too much trust is not often rewarded – now both speeds can be set and are in fact
set now.
The W/F is very minimal and will improve further after the DC motor has new bearings.
ALF