OK .. I decided how to clean////
bought fine silicon burnishing parts for Dremel tool ///
tried with :
teslanol - electro clean
teslanol T6 oszilin
Kontakt 60 spray
alcohol - all kinds
..... non worked good :(
than tonight I tried industrial aceton ... BUT with just a touch it clean a big part of dirt

and after that i do it just with a touch od burnishing with ultra fine silicon rubber for dremel tool and clean all with alcohol !!!!
WORKS GREAT!!!!
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so far cleaned like 6 modules.... PAIN ARE ROTARRY SWITCHED... But managed to clean em too
now one question for MOOG gurus///
WTH are that 10uf capacitors on power rail on modules (old tantals or????)
should i replace em or ????
thanx
D